One bad harvest could wipe out all of a grower's profits for the previous two years.一次歉收可能会将种植者前两年的收益全部抵消掉。A bad harvest naturally came in the train of such a wet summer.夏天如此多雨，歉收自然随之出现了。An anticipated bad harvest will exacerbate social tensions.预料的坏收成将加剧社会紧张形势。