✅ 同义词
🗣️ 情景例句
Next time you are in town, drop me a line.
下次你在城里的时候给我写信吧。
The problem has been bothering me for weeks.
那个问题已经困扰了我几个星期。
It is a world of red sandy deserts (hence its name----the Red Planet),
红色行星），