徒劳无益: flog a dead horse; be a fool for one's pains; be merely wasting one's energy; carry coals to new castle; come to naught; end (up) in smoke; look for a needle in a bundle of hay [in a hayst
追求: 1.(争取) seek; aspire; pursue 短语和例子追求和平 follow after peace; 追求真理 seek truth; be in pursuit of truth; 追求名誉地位 be after fame and position; 追求名利 seek fame and fortune; 追求幸福 pursue happiness; 拼命追