Home/bootless errandbootless errand徒劳无功,徒劳无益,烂摊子,冤枉路Synonyms & Antonymsas inwild-goose chaseSynonymsfool's errand痴人说梦,傻子的事,傻子的任务,愚人节lost cause失败的原因,失落的原因,失落的事业,迷途知返merry chase欢乐的追逐,欢乐的追赶,愉快的追逐,欢乐追逐red herring红鲱鱼,红线,红鱼,红旗snipe hunt狙杀,鹬蚌相争,猎鹬vain attempt妄想,妄图,妄想症,妄想曲waste of time浪费时间,白费功夫,白费力气,废话wasted effort枉费心机,白费力气,徒劳无功,徒劳的努力wasted labor浪费的劳动,浪费的劳动力,浪费的劳力,浪费劳动力Level 9Browse all words →