A smoke detector is on the ceiling in your room.
你房间的天花板上有一个烟雾探测器。
A smoke detector detects the presence of smoke.
烟尘探测器可探测是否存在烟雾。
Mother: Doctor, you’ve got help my son. He thinks he’s a smoke detector.
妈妈：医生，你要帮帮我儿子，他认为自己是个烟雾监测器。
Smoke Detector: Each room and public area is equipped with a smoke detector.
烟感报警器：每间客房及公共区域均设有烟感报警器。
Smoke Detector: Each room and public area is equipped with a smoke detector.
烟感报警器：每间客房及公共区域均设有烟感报警器。
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