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
This house just came on the market.
这栋房子刚刚推出要卖。
I would like to enlarge this film.
我要放大这底片。
quite apart from its significance as food, or from the literary idea that it will become a bird.
而完全不靠它的食用意义或它会变成鸟这样的文学概念来感觉。