the last straw

汉语翻译

例句：

1. The service in this shop has been bad before, but this is the last straw.
   这家商店的服务一向不好，但这一次实在是叫人受不了。
2. The last of these rows seems to have been the last straw.
   这场口角看来是彻底破裂的导火线。
3. Bill had a bad day in school yesterday. He lost his knife on the way home, then he fell down, and when he broke a shoe lace, that was the last straw and he began to cry.
   比尔昨天上学很不愉快。在回家的路上丢了小刀，而且又跌倒，最后当他弄断鞋带时，他就再也忍不住地哭了起来。
4. The last straw breaks the camel's back.
   最後一根稻草压断骆驼的背。