One less car on the road means less pollution.
马路上车少也意味着污染更少。
Otherwise your car on the road "rumbling" the sound of noise pollution caused by easily.
否则你的汽车在路上“轰轰”的响声很容易造成噪音污染。
Road traffic noise has become one of the major urban pollution sources.
交通噪声已成为城市主要污染源之一。
The arterial road in city has become one of the important city pollution sources.
城市干道已成为城市主要污染源之一。
The arterial road in city has become one of the important city pollution sources.
城市干道已成为城市主要污染源之一。
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