ratch
导读：ratch读音音标英[rætʃ]美[rætʃ]
基本意思释义n.（防倒转的）棘齿; 齿杆英英释义Noun1. mechanical device consisting of a toothed wheel or rack engaged with a pawl tha
基本意思释义n.（防倒转的）棘齿; 齿杆英英释义Noun1. mechanical device consisting of a toothed wheel or rack engaged with a pawl tha
ratch读音音标
英[rætʃ]
美[rætʃ]
基本意思释义
n.（防倒转的）棘齿; 齿杆
英英释义
Noun
1. mechanical device consisting of a toothed wheel or rack engaged with a pawl that permits it to move in only one direction
