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verb | adjective | to phrases
knuckle ['nʌk(ə)l] v
gen. 扭节; 弯成肘节形
archit. 弯成肘节
knuckled ['nʌk(ə)ld] adj.
avia. 铰键结合的; 单悬臂铰接的
knuckled: 2 phrases in 1 subject
Drilling2