但是爱人经常来来去去: but lovers always come and lovers always go
失望来来去去而人生依然继续: disappointments come and go but life still moves on
哀悼: grieve [mourn] over sb.'s death; lament sb.'s death 短语和例子向死者家属表示深切的哀悼 express one's heartfelt condolences to the family of the deceased; 哀悼亡友 mourn a deceased friend; 我们哀悼他的逝世。 we lament (