Infructuous
a. 不結果的, 徒勞的
??? 情景例句
Oh, don't forget the mustard.
噢，不要忘了芥末。
Every dog has his day, and every man his hour.
人人都有得意的日子。
I see. I hope everything goes well. Bye!
我明白了。我希望你一切順利。再見。