Multistage
a. 多级的, 多阶段的\\n[机] 多级
🗣️ 情景例句
Have you ever been to Niagra Falls?
你去过尼亚拉加瀑布吗？
I'm playing with the dog downstairs.
我在楼下和狗玩。
All at once, I noticed that my wife seemed to be filled with alarm.
突然，我注意到妻子十分惊恐。