formula
formula — noun
1. A set of actions or steps that is known to produce a particular result; a reliab
A set of actions or steps that is known to produce a particular result; a reliable way of achieving something.
Daichi found a winning formula for his business by putting customers first.
formula + for + noun/gerund
The coach's simple formula of daily practice brought the team great success.
formula + of + noun
There is no magic formula for learning a new language in just a few weeks.
Kabir followed his grandmother's formula for making the perfect dumpling dough.
Caio believes hard work is the only formula that leads to real progress.
- guesswork
action based on guessing rather than a known method
文法句型
formula + for + noun/gerund
用法筆記
Often followed by for + noun or gerund to explain what the method achieves, for example a formula for success or a formula for making bread.
常見錯誤
2. A group of letters, numbers, and symbols that expresses a mathematical relations
A group of letters, numbers, and symbols that expresses a mathematical relationship or rule, used for calculation.
The teacher wrote the quadratic formula on the board for the students to copy.
Charlotte used a simple formula to calculate the area of each triangle.
used + formula to calculate
This formula shows how speed, distance, and time are related to each other.
Aaron memorised the formula for the volume of a cylinder before the exam.
Apinya checked her answer by putting the numbers back into the original formula.
- equation
a statement that two things are equal; a formula may or may not be an equation
- rule
broader; a formula is a rule written in symbols
- expression
a combination of symbols; a formula typically has a practical use
文法句型
use/apply + formula
formula + for + noun
常見錯誤
3. A set of letters and numbers that shows which chemical elements are in a substan
A set of letters and numbers that shows which chemical elements are in a substance and how many atoms of each element it contains.
The chemical formula for water is H₂O — two hydrogen atoms and one oxygen atom.
chemical formula + of/for + substance
Adina learned to read chemical formulas during her first week of chemistry class.
The formula CO₂ represents carbon dioxide, a gas that plants use to grow.
Yael wrote the chemical formula for table salt on the lab report.
Each compound in the experiment has its own unique chemical formula.
文法句型
the chemical formula + of + noun
用法筆記
In chemical formulas, element symbols are followed by subscript numbers showing atom count. For example, H₂O means two hydrogen atoms and one oxygen atom.
4. A specially prepared milk product for babies, given as a substitute for or in ad
A specially prepared milk product for babies, given as a substitute for or in addition to breast milk.
The baby's mother heated a bottle of formula for his evening feed.
bottle of formula
The pediatrician recommended a specific brand of formula for the newborn.
New parents often receive free samples of baby formula from the hospital.
This type of formula contains extra iron and vitamins for healthy growth.
Parents should follow the instructions carefully when preparing powdered formula.
- baby milk
more informal British term; formula is more common in American English
- infant formula
the formal, technical term
- breast milk
the natural alternative to formula for feeding babies
用法筆記
Can be used as an uncountable noun (some formula) or countable when referring to specific types or brands (many formulas on the market).
常見錯誤
5. A fixed group of words that is always used in the same manner during a ceremony,
A fixed group of words that is always used in the same manner during a ceremony, ritual, or official procedure.
The priest recited the ancient formula during the wedding ceremony at the church.
Politicians often repeat the same tired formula when asked about difficult reforms.
repeat the same formula
The opening formula of the letter read simply "To whom it may concern."
During the oath, the officer asked the witness to repeat the legal formula.
The chairperson used the standard closing formula to end the meeting on time.
- set phrase
more general; a formula is a set phrase with a ceremonial or official function
- convention
broader; a formula is a specific conventional wording
用法筆記
Often used in legal, religious, or ceremonial contexts where the exact choice of words carries special importance.
formula — adjective
1. Relating to a class of extremely fast, powerful racing car built to strict techn
Relating to a class of extremely fast, powerful racing car built to strict technical specifications, or to the high-speed competitions these vehicles take part in.
Felix dreams of driving a Formula One car on a real race track one day.
Formula + number
The Formula One race attracts millions of fans from all around the world.
Mechanics spent hours tuning the Formula car before the big competition.
Imani watched the Formula race with her grandfather every Sunday afternoon.
The team celebrated after their driver finished first in the Formula race.
文法句型
Formula + number
Formula + racing
用法筆記
Always used before a noun with a capital F. Usually followed by a number (Formula One, Formula Two) or the word racing.