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
Please sit down.
请坐下。
I would like to check her sewing machine.
我要去检查她的缝纫机。
There are mice next to the refrigerator, under the sink and inside the cupboard!
冰箱边、洗碗槽下，还有橱柜里面都有老鼠！