Fowlds
[人名] 福尔兹
🗣️ 情景例句
How long does your vacation last?
你的假期有多长？
I'm awfully sorry.
真是对不起。
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。