pyramid

pyramid — 名詞

1. a solid three-dimensional shape with a flat base — often a square or triangle —

1.名詞B1
釋義

角錐體

底面為多邊形、側面為三角形的立體圖形

a solid three-dimensional shape with a flat base — often a square or triangle — and triangular sides that all slope upward to a single apex.

例句

Yuki cut out a paper pyramid for her math project on three-dimensional shapes.

Yuki 為了她的數學立體圖形作業,用紙剪出了一個角錐體。

countable noun for geometric solid

The teacher showed the class a wooden pyramid with a square base and triangular sides.

老師向全班展示了一個木製角錐體,它有方形底面和三角形側面。

同義詞
  • polyhedron

    a broader term for any solid figure with flat faces; pyramid is a specific type

  • cone

    similar in having a point at the top and a base, but cone has a circular base, not polygonal

2. a stack or heap of objects arranged so that each layer is smaller than the one b

2.名詞B1
釋義

堆疊物

堆成金字塔形狀的一堆物品

a stack or heap of objects arranged so that each layer is smaller than the one below, creating a shape that widens toward the bottom and narrows toward the top.

例句

The market vendor built a pyramid of oranges on her wooden stand.

那位市場攤販在她的木架子上堆起了一座柳丁金字塔。

countable noun: pyramid of + nouns

Tendai arranged the cans into a pyramid for the store's weekly display.

Tendai 把罐頭堆成金字塔形狀,作為店裡這週的展示。

同義詞
  • pile

    a more general term; a pile does not necessarily have the layered narrowing shape of a pyramid

  • stack

    emphasis on orderly placement, but does not suggest the triangular narrowing shape

用法筆記

Often used in the pattern 'a pyramid of [plural noun]' to describe how objects are stacked.

3. huge ancient stone buildings in Egypt, constructed over 4,000 years ago as royal

3.名詞A2
釋義

金字塔

古埃及法老的大型石造陵墓

huge ancient stone buildings in Egypt, constructed over 4,000 years ago as royal tombs. Each has a square footprint and four sloping sides that rise toward the summit.

例句

Linh and her family visited the Great Pyramid during their trip to Egypt last spring.

Linh 和家人去年春天去埃及旅行時參觀了大金字塔。

usually capitalized when referring to Egyptian structures

The pyramids of Giza are the only surviving wonder of the ancient world.

吉薩金字塔群是古代世界唯一留存下來的奇蹟。

同義詞
  • monument

    a more general term for any large structure built to remember a person or event

  • tomb

    a burial place; pyramid is a specific type of tomb

用法筆記

When referring specifically to the ancient Egyptian structures, 'Pyramid' or 'the Pyramids' is often capitalized. This sense is usually plural ('the pyramids of Giza'), but may be singular when referring to one specific structure ('the Great Pyramid').

常見錯誤

The pyramid shape was invented by the Egyptians.
The ancient Egyptians built the most famous pyramid structures.
💡Pyramids as a geometric shape existed in other cultures (e.g., Mesopotamia, Mesoamerica) before the Egyptian pyramids.

4. a way of describing a company, system, or society where the lower levels contain

4.名詞B2
釋義

階層體系

越往高層人數越少的組織結構

a way of describing a company, system, or society where the lower levels contain many people while each higher level holds fewer people and carries more authority.

例句

At the top of the corporate pyramid sits the board of directors and the CEO.

企業金字塔的頂端坐著董事會和執行長。

metaphorical use: 'pyramid of' + organization type

Stephanie worked her way up the management pyramid over fifteen years at the firm.

Stephanie 在那家公司花了十五年時間沿著管理階層體系往上爬。

同義詞
  • hierarchy

    a more direct term for any ranking system; pyramid emphasizes the visual narrowing shape

  • ranking

    focuses on the order itself, not the narrowing shape

反義詞
  • flat structure

    an organization with few or no management levels between staff and leadership

用法筆記

This is a metaphorical extension of the geometric shape to describe structures. 'Pyramid' does not necessarily imply a fixed number of levels — the key feature is that each level has fewer people than the level below.

5. a dishonest business model in which people who join early make money by getting

5.名詞B2
釋義

老鼠會

靠招募下線而非銷售產品獲利的非法投資模式

a dishonest business model in which people who join early make money by getting new members to join and pay in, rather than by selling actual products or services. The scheme collapses when there are not enough new members to pay the existing ones.

例句

Jack lost his entire savings by joining a pyramid scheme that promised huge returns.

Jack 加入了一個承諾高額回報的老鼠會,結果失去了畢生積蓄。

collocation: pyramid scheme + collapse/lose money

The government warned citizens about online pyramid schemes that target new immigrants.

政府警告民眾注意那些針對新移民的網路老鼠會。

同義詞
  • Ponzi scheme

    similar in structure but typically involves a single operator who collects money from all investors and pays earlier ones with later investors' money, without requiring recruitment

用法筆記

Pyramid schemes are illegal in Taiwan under the Fair Trade Act and the Multi-Level Marketing Supervision Act. They differ from legal multi-level marketing (MLM) companies, which earn revenue from actual product sales. In Taiwanese Mandarin, pyramid schemes are commonly called 老鼠會 (lǎoshǔ huì).

常見錯誤

This multi-level marketing company is the same as a pyramid scheme.
Legal MLM companies earn money from selling products, not just from recruiting new members.
💡The legal distinction hinges on whether real products are sold.

6. a risky investment method in which an investor keeps buying more shares of a sto

6.名詞C1
釋義

融資擴張

利用上漲股票市值為擔保繼續買進的投機方式

a risky investment method in which an investor keeps buying more shares of a stock or other asset by using the growing value of the shares they already own as a guarantee for borrowing more money to buy even more shares.

例句

Vikram pyramided his Amazon shares by borrowing against their rising value to buy more of them.

Vikram 利用亞馬遜股票上漲的市值作為擔保借錢買進更多股票,進行融資擴張。

uncountable noun in financial context

Padma studied the risks of pyramiding before she tried it in the stock market.

Padma 在嘗試股市融資擴張之前先研究了其中的風險。

同義詞
  • margin trading

    a broader category of borrowing money to invest; pyramiding is a specific method within margin trading

用法筆記

Do not confuse this sense with 'pyramid scheme' (noun sense 5). 'Pyramiding' in the stock market is a high-risk but legal investment strategy, not a fraudulent recruitment model. It is most commonly used in American financial journalism.

常見錯誤

Pyramiding is the same as a pyramid scheme.
Pyramiding is a legal stock market strategy, while a pyramid scheme is an illegal fraud.
💡They share the word 'pyramid' but are completely different concepts.

pyramid — 動詞