Essential optional user facility
[计] 基本的任选用户设施
🧩 词语组成解析
user
['ju:zə]
n. 用户，使用者;吸毒成瘾者;
🗣️ 情景例句
Just put it over there, Charles.
就放在这儿吧 ，Charles。
You must go to the moon. It's your duty.
你必须上月球去，这是你的职责。
It comes nearer to the engines with which man has 'conquered' the air, as he boasts.
它更近乎于人类自夸的“征服”了空气的发动机。