1.separate from 分离
Bramble with sweet edible black or dark purple berries that usually do not separate from the receptacle.
一种结甜的、可食用的、黑色或深紫色浆果的悬钩子属植物,其果实通常不与花座分离。
2.ask for trouble 自找麻烦
The boss seems to be annoyed. To talk to him now is to ask for trouble.
老板似乎在生气。现在找他谈话是自讨苦吃。
3.day shift 日班
They had also learned how calculate day shift and night shife as well.
而且我们的古人老早就知道对于日班和夜班的计算方法。