Mobile sources
[经] 机动的来源
🧩 词语组成解析
n. 输入源；发起者；来源（source的复数）
🗣️ 情景例句
Smoking makes your teeth yellow and ugly.
吸烟让你的牙齿变得又黄又丑。
We've booked a Western-style room for you.
我们已为你订了一间西式的房间。
No human endeavor or thought would be unchanged by it.
任何人类的努力和想法都会发生变化。”