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TOEFL BNC: 20326 COCA: 17219

cog

Word family
Related topics: Technology, Mechanical
cog /kɒɡ $ kɑːɡ/ noun [countableC]  
1. Ta wheel with small bits sticking out around the edge that fit together with the bits of another wheel as they turn in a machine 齿轮
2. Tone of the small bits that stick out on a cog 嵌齿,轮齿
3. a cog in the machine/wheel UNIMPORTANTsomeone who only has a small unimportant job in a large organization 〔大机构中的〕无足轻重的人物,小人物
Examples from the Corpus
Origin cog
(1200-1300) From a Scandinavian language
cog noun
Chinese
Corpus

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