Gcd
最大公约数
🗣️ 情景例句
There is nothing interesting in the newspaper.
报纸上没有什么有趣的新闻。
How did you sign the letter?Did you write, sincerely yours?
你怎么签名信的?你写了"真诚地你的"？
I want to improve, but I don't know how.
我想提高它，但又不知道怎么样才能提高。