cog

/kɒɡ/ (bre, ipa) · [kˈɔɡ] /kɑːɡ/ (ame, ipa) · [kˈɔɡ] /ˈkäg/ (ame, mw)

cog — 名詞

  • cogsingular
  • cogsplural

1. any of the small tooth-shaped pieces that stick out from a wheel's rim and lock

1.名詞C1
釋義

齒輪齒

齒輪邊緣突出的單一齒

any of the small tooth-shaped pieces that stick out from a wheel's rim and lock into the matching pieces on a neighbouring wheel, so that turning one wheel makes the other turn too

例句

Feng noticed that one cog on the old mill wheel had snapped off during the storm.

Feng 發現古老磨坊輪上有一個齒輪齒在風暴中斷掉了。

cog on [wheel] — countable, locating the part

The watchmaker carefully polished each tiny cog before fitting it back into the antique brass clock.

鐘錶匠仔細地把每一個小齒輪齒擦亮,再裝回那座古董黃銅時鐘裡。

同義詞
  • tooth

    the general everyday word; cog is the specific gear-wheel term used by engineers

  • gear tooth

    two-word technical synonym used in machinery and engineering writing

文法句型

cog on/of [wheel|gear]

用法筆記

Distinguish from sense 2: this sense names ONE tooth on the rim, not the whole toothed wheel. Often plural when describing what makes a mechanism work.

常見錯誤

The cog turned the smaller cog.' (using cog to mean the whole wheel).
The cogwheel turned the smaller cogwheel.
💡a single cog is one tooth on the rim.

2. a wheel whose rim is lined with small tooth-shapes so it can grip and turn anoth

2.名詞C1
釋義

齒輪

邊緣有齒的傳動輪

a wheel whose rim is lined with small tooth-shapes so it can grip and turn another similar wheel inside a machine

例句

Christopher oiled the rusted cog at the heart of his grandfather's old printing press.

Christopher 為祖父那台老印刷機核心的生鏽齒輪上了油。

Tariq watched two iron cogs spin against each other inside the windmill's wooden housing.

Tariq 看著兩個鐵製齒輪在風車木造機殼裡互相咬合轉動。

cogs spin / mesh — typical verb collocation

同義詞
  • cogwheel

    the more transparent compound; preferred in modern non-technical use

  • gear

    everyday word; broader — any toothed wheel that transmits motion in a machine

  • sprocket

    specifically a toothed wheel that drives a chain, not another gear

文法句型

the cogs of [machine]

用法筆記

Distinguish from sense 1: this sense names the whole toothed wheel. In modern English the longer word 'cogwheel' is more common; plain 'cog' for the wheel is more typical in older or technical writing.

3. someone or something whose work matters to a big company, machine, or system, ev

3.名詞B2
釋義

小螺絲釘

大組織中地位低但仍重要的人

someone or something whose work matters to a big company, machine, or system, even though their role is small and they could be replaced fairly easily

例句

After twenty years at the bank, Tamar still felt like a cog in a giant corporate machine.

在銀行待了二十年,Tamar 仍然覺得自己只是龐大企業機器裡的一顆小螺絲釘。

a cog in [a system] — fixed pattern

Rohan refused to be just another cog in the factory; he wanted his own ideas to be heard.

Rohan 拒絕只當工廠裡另一顆小螺絲釘,他希望自己的想法能被聽見。

just a/another cog — diminishing self-description

同義詞
  • pawn

    stresses being used by more powerful people; cog stresses being one replaceable piece

  • small fish

    informal; emphasises low rank rather than mechanical role

  • underling

    focuses on rank below a boss, not on being part of a system

反義詞
  • leader

    a cog follows the system; a leader directs it

  • key player

    stresses irreplaceable importance, the opposite of a cog's replaceability

文法句型

a cog in [larger system]

just a cog

用法筆記

Frequently used with a negative or self-deprecating tone, complaining that one feels replaceable. The phrase 'a cog in the machine' is so common it is almost fixed.

常見錯誤

I am a cog of the company.
I am a cog in the company.
💡the preposition is always 'in', not 'of'.

cog — 動詞

cog — 縮寫