be at one´s wit´s end be at the end of one´s rope show feet of clay have exhausted one´s tricks
I really have no idea what to do. Now I am at my wit´s end.
我真的不知该怎么办才好。 我现在是黔驴技穷了。
—— 给力词典精选Your advice would be exceedingly valuable to him, who is at present at his wit´s end.
你的建议对他将非常有价值, 因为他现在已经黔驴技穷了。
—— 给力词典精选