Elementary number theory
[计] 初等数论
🧩 词语组成解析
🗣️ 情景例句
How do you feel about the last part of the letter?
你对最后一部分有什么看法呢？
It is easier to give good counsel than to follow it.
提出忠告易，照著办事难。
However, when I was going out shopping last week, I noticed him in the garden near the gate.
然而上星期我正要出去买东西时，发现它正呆在花园里边靠门的地方。