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
Welcome to New York.
欢迎你来纽约。
Health and understanding are the two great blessing of life.
健康和融洽是人生两大幸事。
At exactly that moment, the telephone rang.
恰恰在此时，电话铃响了。