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
No one should think that their own culture is superior.
任何人都不应该有文化优越感。
I bet you can.
我确信你能做到。
Excuse me! Is this your pencil-box?
请问，这是你的铅笔盒吗？