we don't know how to run the machine.let's_ the instructions.空里填 look up 还是填 look at
问题描述：
we don't know how to run the machine.let's_ the instructions.空里填 look up 还是填 look at
答
填 look up ,意为：查阅
翻译：我们不知道如何运行那台机器,让我们查一下说明书吧.