Limnimeter
自记湖泊水位计
🗣️ 情景例句
What are you up to?
你在忙些什么？
Do you have a visa?
你有签证吗？
He's been there for over two years. He's been there since two years ago.
他到校有两年多时间了。他两年前就到那儿学习了。