https://online2.tingclass.net/lesson/shi0529/0009/9907/437.mp3
https://image.tingclass.net/statics/js/2012
讲解文本：
the last straw 最后一根稻草，忍耐的极限
She stood me up again. That was the last straw.
她又放我鸽子了，简直忍无可忍了。
You did not finish the work. That was the last straw.
你没完成任务，这已经触碰底线。
疯狂练习吧!
