Self-propulsion
n. 自力推进
🧩 词语组成解析
self
[self]
n. 自己;本人;本性;私利;
adj. 同一的;纯净的;单一的;
vt. 使自花授精;使近亲繁殖;
vi. 自花授精;
🗣️ 情景例句
Have a smooth flight.
一路顺风。
It's difficult to make a decision whithout knowing all the facts.
不了解所有事实而做出决定是困难的。
how many heath fires they cause, how much litter they leave, in short,
即他们引起了多少场野火，留下了多少垃圾。总之，