Bluetooth
n. 蓝牙技术（一种无线通信的标准）
🗣️ 情景例句
A man can develop his mind by reading.
读书增进个人的智慧。
Are you crazy?
你疯了吗？
He always meant to go back on day, but not to stay.
他总想将来回国看看，但却不愿长期住下去，