塞吉奥：我的朋友告诉我，现在有一种新的短距离无线通信技术。
Sergio: My friend told me that there is a new short signal radio technology.
约翰：我朋友告诉我现在有一种新的短距离无线通信技术。
John: My friend told me that there is a new short distance radio technology.
蓝牙是一种短距离无线通信技术。
Bluetooth is a wireless technology for short distance Communication.
蓝牙是一种短距离无线通信技术。
Bluetooth is a wireless technology for short distance Communication.
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