Slipcase
n. 书套
✅ 同义词
🗣️ 情景例句
Sorry.
对不起。
No matter what the excuse, you must not be late.
不管有什么借口，你一定不要迟到。
Many owners of private cars are going to offer 'free rides' to people on their way to work.
很多私人汽车的车主正准备为乘车上班的人们提供“免费乘车”的服务，