1.
Whopper lowered his voice but he was still excited.
华勃降低音量，但还是很激动的样子。
2.
In fact, many classical musicians now wear earplugs that reduce the volume of sound without deforming it.
许多古典音乐家会戴著降低音量、但不会影响音型的耳塞来保护自己的耳朵。
3.
To lower(a note)a semitone.
降半音把（音符）降低半音
4.
B flat is a semitone below the note B.
降B音比B音低半音.
5.
A note that is lowered a half step.
降半音降低了半个音阶的音符
6.
Increase or decreases the volume of the sounds associated with system events such as incoming e-mail.
提高或降低跟系统事件(如传入电子邮件)有关的声音音量。
7.
Sink your voice to a whisper.
把你的声音降低到耳语。
8.
Her voice sank to a whisper.
她把声音降低到了耳语。
9.
He sank his voice to a whisper.
他把声音降低到耳语。
10.
(music) lowered in pitch by one chromatic semitone.
（音乐）在音调上降低半音的。
11.
A tone of low pitch or volume, especially of spoken sound.
低音；低声低强度或音量的音调，尤指说话声音
12.
The latest style large capacity muffle with special structure has reduced the noise of exhaust gas. A larger air filter is employed to reduce the noise of suction gas.
新型大容量和特殊内部构造消音器降低了排气噪音.采用较大的空气滤器减少了进气噪音.
13.
Maybe downloading music from the Web will reduce the demand for CD cases.
从网上下载音乐也许可以降低激光唱片盒的市场需求量。
14.
Airflow system maximizes air volume at minimum noise level.
空气动力系统使加热器在最大出风量时将噪音降到最低.
15.
A lowering in amount, degree, or position.
降低，削弱数量、程度或地位的降低
16.
This armor is well-oiled mnd magically constructed, so not only is it nearly silent, it also dampens surrounding sounds.
蹑行：在润滑剂和魔法的辅助下，这件护甲不但几乎不会发出声音，甚至还能稍微降低四周的音量。
17.
a cut in expenditure, prices, production
费用、 价格、 产量的降低
18.
A sign(])affixed to a note to indicate that it is to be lowered by a half step.
降半音记号加在音符上用于表示降低半个音阶的符号（]）