specialize

specialize — verb

1. to focus your studies or work on one specific topic or activity until you know i

1.動詞不及物B1
釋義

to focus your studies or work on one specific topic or activity until you know it thoroughly

例句

Dario specialized in organic chemistry during his final year at the university.

specialize in + academic field

This clinic specializes in treating children with rare heart conditions.

specialize in + gerund phrase

同義詞
  • major in

    only used for choosing a university subject; less formal than 'specialize'

  • focus on

    can be temporary or short-term; does not imply deep expertise

  • concentrate on

    emphasizes intense effort rather than long-term dedication

反義詞
  • generalize

    to work across many areas rather than focusing on one

文法句型

specialize in + noun phrase

specialize in + gerund phrase

用法筆記

The most common sense of the word. The subject is usually a person or an organization, and the object of the preposition 'in' names the field or activity. This sense is never used transitively — do not say 'specializes heart surgery'.

常見錯誤

❌She specializes on heart surgery.
✅She specializes in heart surgery.
💡The correct preposition after specialize is 'in', not 'on'.
❌He specializes accounting for small businesses.
✅He specializes in accounting for small businesses.
💡'Specialize' always needs the preposition 'in' in this sense.

2. to provide a particular type of product or service as the main activity of a bus

2.動詞不及物B1
釋義

to provide a particular type of product or service as the main activity of a business, often because you do it especially well

例句

Reema's restaurant specializes in traditional South Indian seafood dishes.

specialize in + cuisine type

That travel agency specializes in eco-friendly tours of Southeast Asia.

同義詞
  • deal in

    slightly more formal; common in trade contexts

  • focus on

    less specific; can apply to any business priority

文法句型

specialize in + product type

specialize in + service type

用法筆記

Common in advertising and business descriptions. The subject is typically a company, shop, restaurant, or service provider. Distinguish from sense 1: sense 1 is about the person's expertise, while sense 2 is about what a business offers to customers.

常見錯誤

❌The store specializes Italian products.
✅The store specializes in Italian products.
💡The preposition 'in' is required after 'specialize'.

3. to be known for doing a particular thing very often, especially something that o

3.動詞不及物B2
釋義

to be known for doing a particular thing very often, especially something that other people find annoying or amusing

例句

My dad specializes in telling the same jokes at every family celebration.

informal: specialize in + gerund for habitual behavior

Ryo specialized in making sarcastic comments during every team meeting.

同義詞

文法句型

specialize in + gerund phrase (habitual action)

用法筆記

Often used playfully or critically. The behaviour described is usually negative or mildly irritating. Unlike senses 1 and 2, this sense does not imply genuine skill or expertise — just repetition.

常見錯誤

❌He specializes on arriving late.
✅He specializes in arriving late.
💡Even in this informal sense, the preposition is 'in', not 'on'.

4. (of a living thing, organ, or cell) to change gradually over time so that it fit

4.動詞不及物C1
釋義

(of a living thing, organ, or cell) to change gradually over time so that it fits one specific set of conditions or a single role exactly

例句

Over millions of years, this bird's beak specialized for cracking open hard seeds.

specialize for + evolutionary purpose

Certain cells in the human pancreas specialize in producing insulin.

specialize in + biological function

同義詞
  • adapt

    broader meaning; can apply to behaviour, not just physical traits

  • differentiate

    specifically about cells taking on distinct roles; more technical

  • evolve

    broader; refers to any genetic change over generations

文法句型

specialize for + purpose

specialize to + infinitive

specialize in + function

用法筆記

Technical sense used in biology, physiology, and ecology. Unlike senses 1-3, this sense can be followed by 'for' (specialized for swimming) or 'to' (specialized to survive) in addition to 'in'. When followed by 'in', the object is a function (digestion, insulation), not a field of study.

常見錯誤

❌The lungs specialized for breathing in humans.
✅The lungs in humans have specialized for gas exchange.
💡The subject should be the structure that changed, not the environment it belongs to.

5. to change a tool, machine, or system so that it serves one specific purpose or f

5.動詞及物C1
釋義

to change a tool, machine, or system so that it serves one specific purpose or function

例句

The factory specialized its production line for making electric vehicle batteries.

transitive: specialize + object + for + purpose

Tendai's team specialized the software for use by visually impaired users.

同義詞
  • tailor

    more common in modern English; less technical

  • customize

    emphasizes adapting to individual needs

  • adapt

    broader; does not imply a narrow purpose

反義詞

文法句型

specialize + noun + for + purpose

be specialized + to + infinitive

be specialized + for + noun phrase

用法筆記

The only transitive sense of 'specialize'. The direct object is the thing being adapted, not the purpose. Frequently appears in the passive voice: 'The equipment is specialized for underwater use.' In modern English, 'tailor' or 'customize' is more common.

常見錯誤

❌The company specialized the training for new workers.' (ambiguous — could be sense 1 or sense 5)
✅The company specialized the training program for new workers.
💡Adding the object ('program') makes it clearly transitive sense 5.

6. to name or describe something in a detailed and exact way, leaving no room for c

6.動詞及物C2
釋義

to name or describe something in a detailed and exact way, leaving no room for confusion

例句

The contract specialized the exact conditions under which payments could be withheld.

formal: specialize + wh-clause

Could you specialize which sections of the report you would like me to revise?

formal interrogative: specialize + wh-clause

同義詞
  • specify

    the modern, more common equivalent; use this instead

  • particularize

    equally rare; formal and literary

  • stipulate

    used in legal contexts; implies a condition or requirement

反義詞

文法句型

specialize + wh-clause

specialize + noun phrase

用法筆記

A rare, formal sense. In modern English, 'specify' is far more common. This sense of 'specialize' is mostly found in legal or technical documents from earlier periods. Learners should use 'specify' instead unless writing in a deliberately formal style.

常見錯誤

❌Please specialize what you mean.' (unclear whether sense 1 or sense 6 is intended)
✅Please specify what you mean.
💡'Specify' is clearer and more natural in modern English.