Step rocket
多级火箭
🧩 词语组成解析
step
[stɛp]
n. 步，脚步;步骤，手段;步调;级别;
vt.& vi. 举步，行走;踩，踏上;跨入;轻快地走;
vi. 踏，踩;走;
vt. 跳舞;迈步;使成阶梯状;
rocket
['rɑkɪt]
n. 火箭;火箭发射器;火箭发动机;芝麻菜;
vi. 飞快地移动;急速上升;
vt. 用火箭运送;用火箭攻击;
🗣️ 情景例句
I'm a graduate of Harvard University.
我是哈佛大学的毕业生。
The black ox has trod on his foot.
祸事临头。
I had no sooner got off the ship than I was assailed by a man who wanted to sell me a diamond ring.
我刚下船，就被一个人截住，他向我兜售一枚钻石戒指。