Coprogen
粪生素
🗣️ 情景例句
Let's go. What are your questions?
我们就进行吧。你想问哪些问题？
What's the population of China?
中国有多少人口？
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。