Background region
[计] 后台区
🧩 词语组成解析
🗣️ 情景例句
What's wrong, Susan?
有什么问题吗， Susan？
While we were having breakfast,John was talking on the telephone.
当我们正在吃早餐时，约翰正在打电话。
The killing of the bison changed the whole wildlife of the plains. With fewer bison, grass shoots were not eaten, so grass did not grow as strongly.
屠宰野牛改变了平原的全部野生生物。野牛少了，嫩草没有牛来吃了，草就长得不粗壮。