cog

kɒg

托福

n. a subordinate who performs an important but routine function
n. tooth on the rim of gear wheel
v. roll steel ingots

n. 嵌齿, 小船
vt. 给...装配齿轮, 欺骗

20,326

BNC 频率

17,219

使用频率

cog 是一个独立的词根，源自拉丁语 cogitare，意为“思考”。可以联想到与思考、思想有关的词，如 cognitive（认知的）。

例句

1. The cog in the machine was broken, so it wouldn't work.

机器里的齿轮坏了，所以它无法工作。

2. She turned the cog to adjust the volume of the radio.

她转动齿轮来调节收音机的音量。

3. Each cog in the clock helps it keep time accurately.

时钟中的每个齿轮都帮助它准确计时。