whichadj.哪一个;哪一些pron.哪一个;哪些
Which class is he in?直通中继线
Which exit do I take?直达列车
Which platform is it?直流
Which would you like?n.通过站
Which is the hot tap?大修
Which one is Liu Wei?adj.过境的n.过境直达
Which are his books ?下承式桥,下承桥
Which is the largest?哪一个最大?
Which form do I need?[计] 通过短语
Which game are you in?长铰刀