Klep
[荷]阀门
🗣️ 情景例句
It's time we hired a secretary to answer the phones.
我们早就该请一个秘书接听电话了。
What would you have done last night if you hadn't had to study?
如果昨晚你不必学习你会做什么？
What kind of problem.
什么样的问题呢？