Multistage rocket
多级火箭
🧩 词语组成解析
a. 多级的, 多阶段的\\n[机] 多级
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
you can help me with dinner.
你就来帮我准备晚餐。
I invited him to come in, but he wouldn't.
我请他进来，但是他不肯。
If they are not brought to the surface soon they may lose their lives.
如果不把他们尽快救到地面上来，他们就有可能丧生。