Bluetooth
n. 蓝牙技术（一种无线通信的标准）
🗣️ 情景例句
This is he speaking.
我就是。
Excuse me,sir.Can you give me some information
对不起,先生.你能给我一些信息吗？
There are a lot of people in the swimming pool.
游泳池里挤满了人。