音响发声器

例句：

1. 1. The room was filled with the ambient noise of traffic.
   房间里充满了交通的嘈杂声。
2. 2. The ambient temperature in the park is pleasantly warm.
   公园里的气温适宜而温暖。
3. 3.The ambient light from the street lamps casts a warm glow on the sidewalk.
   街道上的路灯发出的柔和光线给人行道投下了温暖的光。