ratch

英[r?t?]
美[r?t?]

基本釋義

n.
（防倒轉(zhuǎn)的）棘齒; 齒桿

英英釋義

Noun

  • 1. mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction

最新英語單詞

行業(yè)英語