Optional extras
[化] 任选附件
🧩 词语组成解析
[计] 附加设备, 额外设备
🗣️ 情景例句
I appreciate your help very much.
我非常感激你的帮助。
I think gray hair makes you look rather distinguished.
我觉得你灰白的头发使你看上去很严肃。
It is no use learning without thinking.
学而不思则惘。