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to keep down
[phrase form: keep]
01
控制, 保持低水平
to maintain something at a low level and prevent it from increasing
Example
The company has worked to keep down production costs to remain competitive.
该公司一直致力于控制生产成本，以保持竞争力。
Regular exercise can help keep down cholesterol levels.
规律的锻炼可以帮助控制胆固醇水平。
02
保持食物不吐出, 控制食物不呕吐
to retain food or liquids in the stomach without throwing them up
Example
She's had some water, but she ca n't keep any food down.
她喝了一些水，但她无法保持食物不吐出。
After experiencing severe nausea, he struggled to keep down his breakfast.
在经历了严重的恶心之后，他努力保持食物不吐出其早餐。
03
限制, 压制
to restrict someone or a group from freely expressing themselves or asserting their opinions and rights
Example
The authoritarian regime has attempted to keep down any opposition or dissent.
这个专制政权试图限制任何反对意见或异议。
Some societies have a history of trying to keep down certain minority groups.
一些社会有试图压制某些少数群体的历史。
04
控制音量, 降低音量
to control or lower the volume or intensity of something to prevent it from becoming too loud
Example
Please keep the music down; the neighbors are trying to sleep.
请控制音量，降低音量；邻居们正在尝试入睡。
We need to keep the noise down in the library to maintain a quiet atmosphere.
我们需要在图书馆控制音量，以维持安静的氛围。
05
蹲下, 伏下
to lower or hide one's body to avoid being noticed
Example
The soldiers had to keep down to avoid being spotted by the enemy.
士兵们必须蹲下以避免被敌人发现。
When playing hide-and-seek, the children tried to keep down in the tall grass.
玩捉迷藏时，孩子们试图在高草中蹲下，伏下身体。
