谢天谢地，火车启动后新鲜开始空气流通了。

Thankfully, fresh air began circulating once the train got under way.

youdao

他们喜欢乡村自然的风光、清新的气流、新鲜的空气和高高的山脉。

They like natural scenery, clear streams, fresh air and high mountains.

youdao

他们喜欢乡村自然的风光、清新的气流、新鲜的空气和高高的山脉。

They like natural scenery, clear streams, fresh air and high mountains.

youdao