而这就像当一辆有轨电车沿着路线疾驰的同时，乘务员在极力减缓车速以便铺设新的轨道。

Think of it as a railroad car hurtling down the line at the same time that attendants scramble to hitch on the wheels and lay the track.

youdao

而这就像当一辆有轨电车沿着路线疾驰的同时，乘务员在极力减缓车速以便铺设新的轨道。

Think of it as a railroad car hurtling down the line at the same time that attendants scramble to hitch on the wheels and lay the track.

youdao