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1. [机]防音装置 内燃机的消音装置 消声器：disinfecting agent 消毒剂, 杀菌剂 | quieter [机]防音装置 内燃机的消音装置 消声器 | olden 古昔的
2. 消音装置：quiet well 安静井 | quieter 消音装置 | quietus 偿清;解除;静止状态
3. 消音器：quieter 消声器 | quieter 消音器 | quietness 无声性
4. 消声器：quiet 静的 | quieter 消声器 | quieter 消音器
1. Visitors will find this a quieter place to relax and convene with nature than Bai Causeway.
2. The quieter member of the Liu clan, he is working harder to squeeze more margins out of the increasingly competitive feed business.
3. quieter
3. Aircraft now entering into service are typically 20 decibels quieter than comparable products some 40 years ago.
4. Peng Peng could be the next Lang Lang, but he has chosen a quieter path of composing music.
5. quieter的解释
5. Car parking on busy roads will also cost more in quieter areas.
6. Imaginatively named Beach No 2 is smaller and quieter than Beach No 1 as it is further from the centre of the old town.
7. Ma used the quieter form of communication in order not to disturb nearby wolves.
8. There are also quieter activities, including angling for carp and other fish in a large manmade lake.
9. The streets lack their usual bustle, and people speak in quieter voices.
10. Issuing a guideline to create a quieter atmosphere is a step in the right direction to reduce noise pollution.