Expressions
n. 表情；公式；表达式；表示式（expression是复数形式）
🗣️ 情景例句
The bad news is, you won't be able to adopt the dog.
坏消息是你不能收养那只狗了。
After forty years teaching English he thinks it's time to call it a day.
他教英语四十年，认为该退休了。
What's it used for?
有什么用途？