cogwheel

Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

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cog·wheel /ˈkɒɡ-wiːl $ ˈkɑːɡ-/ noun [countable] Ta cog 齿轮

cog·wheel nounChineseSyllable

cogwheel
cog‧wheel /ˈkɒɡ-wiːl $ ˈkɑːɡ-/

noun [countable]
a cog

cog·wheel

BrE

/ˈkɒɡwiːl/

NAmE

/ˈkɑːɡwiːl/

(

also cog

)

noun

a wheel with a series of teeth on the edge that fit between the teeth on the next wheel and cause it to move 齿轮