动副结构
keep down your voice/keep your voice down
keep down the prices/keep the prices down
keep down
使不升起; 蹲下, 伏倒
Keep down or you'll be hit by shell fragments.
趴下, 否则你会被弹片击中的。
控制, 限制
I hope the wind keeps down, or the sea will be too rough for sailing.
希望风不要再大了, 否则, 海面浪涛汹涌, 无法航行。
除掉
They hoe the garden to keep down the weeds.
他们把花园里的草锄掉, 阻止其生长。
使留级
Haas was afraid that if he failed his examinations again, he would be kept down next year.
哈斯担心他如果再考不及格, 下一年就得留级了。
吞下药物; 不吐出来
The sick man can't keep anything down.
这个病人无法使任何东西不吐出来。
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