?徒劳无功
... 颠倒黑白 To talk black into white 徒劳无功 To flog a dead horse 浑水摸鱼 To fish in troubled waters ...
?徒劳无益
... To carry coals to Newcastle 多此一举 To flog a dead horse 徒劳无益 To let the cat out of the bag 泄露秘密 ...
?无法解决的事情
... 解决的事情 fix things 无法解决的事情 to flog a dead horse 和需要解决的事情 settling scores ...
徒劳无功;枉费心机
bite on granite??/??cask of Danaides
英汉双解词典包含3185865条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。