800 number
【电信学】受话人付费业务(指前3位数字为800的电话号码)
🧩 词语组成解析
🗣️ 情景例句
The organization serves major companies in this city.
这个组织为本市各大公司服务。
As the touchstone tries gold, so gold tries man.
试金石可以试金，正如黄金可以试人。
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时