请按下开关，房间里的灯就会亮起来。

Please press the ___switch to turn on the lights in the room.

她决定从自行车换到公共交通。

She made the ___switch from biking to public transport.

比赛中场时，队长决定让前锋和中场球员互换位置。

The captain decided to ___switch the striker and midfielder positions at halftime.