Staged vehicle
多级火箭
🧩 词语组成解析
a. 分期的
🗣️ 情景例句
I have no idea about fashion there days, which is why I dress so plainly.
我对现在的时装潮流一窍不通，这就是我穿得这么普通的原因。
Some persons do first, think afterwards, and then repent for ever.
有些人做了再思考，从而悔恨终身。
When will the train leave?
火车什么时候开？