Selfs
[医]自交后代, 自交体
🗣️ 情景例句
What's the climate like in your country?
你们家乡的气候如何？
No, I don't think so.
不，我想不会。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。