no obj.
1- (especially of the earth) shake or tremble（尤指地球）震动; 摇晃：
the rumbling vibrations set the whole valley quaking.
隆隆的震动使整个峡谷在摇动。
1.1
- (of a person) shake or shudder with fear（人）（吓得）颤抖, 哆嗦：
those words should have them quaking in their boots.
那番话会把他们吓得浑身哆嗦。
派生词
quaky
adjective （quakier, quakiest）词源
Old English cwacian.