Is that the lab ______ we did physics experiments in during
4个回答

你看看能不能这样理解.

which相当于前面的lab

which we did physics experiments in 还原就是 we did physics experiments in the lab

介词in 加上名词lab一起组成了地点状语,in the lab是状语成分

但是就单单the lab来说,它是作为介词in的宾语,也就是说,in which,的which也是充当介词In的宾语了.