Stree
应力
🗣️ 情景例句
Mr. O'Neill is the publisher of several magazines. O'Neill
先生是好几家杂 的发行人。
Thank you for taking me home.
谢谢你送我回家。
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。