break down point

例句：

1. 1.The car broke down on the highway due to a faulty tire.
   汽车在高速公路上因为一个故障的轮胎而抛锚了。
2. 2.The project's break down point is at 50% capacity.
   该项目的崩溃点是50%的容量。
3. 3.The economy is expected to break down at this point in time.
   预计经济在这个时间点会崩溃。