It can choose single track or double track according to demand.

可根据实际需要选用单导轨或者双导轨。

youdao

To make sure I am on the right track, let me double check what you want.

为确保无误让我再核对一遍您所希望的。

youdao

To make sure I am on the right track, let me double check what you want.

为确保无误让我再核对一遍您所希望的。

youdao