🗣️ 情景例句
They come back here for lunch,
他们回到这儿来吃午餐，
Adversity is a good discipline.
苦难是磨练人的好机会。
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。