which
好几年以来,我一直在告诉别人哪条航线最合理。
For years, I’ve been telling people which route makes the most sense.
哪条
Which one?
— 地球上的星星 (2007)
你选哪条腿
Which leg do you choose?
— 摔跤吧!爸爸 (2016)
毕竟,我提前半年就告诉了人们自己要走哪条航线。
After all, I told people six months in advance which route I was going to take.