Amtrack
(=American track)全国铁路客运公司[美]
🗣️ 情景例句
Please, after you.
你先请。
OFF. It gets dark.
断开开关，它就会熄灭。
We'd better not just talk; let's go to the river to bathe.
我们最好别光顾说了；咱们去河里游泳吧。