- 重点词汇
- 噪音
undesired sound; rumble; static; strepitus; noise
- 污染
pollution; contamination; defilement; stain; taint; fouling; pollutant; pollute; contaminate; defile; foul; poison; infect
- 多少
how many; how much; to some extent; amount; number; how; any; well; somewhat; many; much
- 分贝
decibel; dB
- 以上
more than; over; above; upwards; the above; foregoing; aforesaid