Externals
n. 外面的( external的复数形式 ); 外部的; 外观的; 外国的
✅ 同义词
🗣️ 情景例句
We'll call Mrs. Martinelli and tell her to keep looking for us.
我们会打电话给Martinelli太太告诉她继续帮我们物色房子?
Just a minute and I'll see if there are any flights.
等一下，我来看看有没有班机。
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。