Four operations
四则运算
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
n. 运作；运营；业务操作（operation的复数）
🗣️ 情景例句
We'll come upstairs and get you in a little while.
我们待会儿就上楼来带你下去。
When you visit an American home.
在你访问一户美国人家时
That's good. I think I'll sow my carrot seed tomorrow.
好呀，我想明天播胡萝卜种。