第三人称单数：keeps down 现在分词：keeping down 过去式：kept down
1.压住;镇压,压服
2.【印】用小活字排印
3.缩减
4.保留(食物等)
5.一直坐着,一直睡着
1.to control something and prevent it from increasing in size or number
2.to stop someone from achieving what they are capable of achieving
3.to succeed in keeping food in your stomach although you feel as if you want to vomit
4.to make a noise less loud
5.to control people in such a strict or cruel way that they have very little freedom or very few rights
keeps downkeeps downkeeps down