Staircases
n. 楼梯( staircase的复数形式 )
🗣️ 情景例句
I worked to put together a book of photographs.
我的工作是创作出一本摄影书。
Fill it up with unleaded and check the oil,please.
请加满不含铅的汽油，并检查一下机油。
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。