Even at its most fanciful, physics, it seems, can play around for only so long before it gets back to serious work.
物理学，虽然最具想象力，但是在回去进行认真的工作之前，好像只能做这么多。
Like when my mother asks me to finish the house work, I have to finish it before I go out to play.
比如当我妈妈叫我完成家务，我必须在出去玩之前完成。
Social network also play an important role in the process of getting work before going into the city.
在帮助农民工获得进城前工作安排的过程中，社会网络也发挥着重要作用。
Before he went to work each night, her father knelt by her door and pressed play on a tape he'd made of his laughter.
每晚出门工作前，李拉的父亲总要跪在她的壁橱门口，播放一盘录了自己笑声的磁带。
I work with all of the trumpets for an hour before we join the other instruments to play as a band.
我花一小时负责教授所有吹小号的学生，然后我们和其它乐器组成一个乐队演奏。
I work with all of the trumpets for an hour before we join the other instruments to play as a band.
我花一小时负责教授所有吹小号的学生，然后我们和其它乐器组成一个乐队演奏。
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