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
Hi, Marilyn. I hope it's not too late.
你好， Marilyn， 我希望我来得不算太晚。
The fox is known by his brush.
狐狸只因尾巴大，所以人人认识他。
Life on a desert island is wretched.
认为荒岛生活很可怕，