inexhaustible; 取之不尽,用之不竭
shout oneself hoarse; shout oneself blue in the face 声嘶力竭
The mountain fell down and the river dried up. 山崩川竭。
drain a pond to catch all the fish 竭泽而渔
Jie Yong 竭永
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)