- (使)不靠近，留在原处；(使)不往前走：
They all rushed forward but I kept back.
他们都向前冲去，但我仍留在后面。
Keep back! The car is coming.
别往前走了!车开过来了。
I kept my friend back from the dangerous animal.
我不让我的朋友靠近那个危险的动物。
- 阻止，阻拦，阻挡；妨碍；耽搁：
Nobody can keep me back from taking the job.
没有人能阻拦我接受这项工作。
The teacher didn't come on time because the heavy rain kept him back.
老师没能及时来，因为大雨把他给耽搁了。
- 抑制，控制，克制(感情等)：
Hearing the sad news, she couldn't keep back her tears.
听到那个可悲的消息，她忍不住落泪了。
He can't keep back his anger any longer.
他再也压不住怒火了。
- 隐瞒：
I will keep back nothing from you.
我不会对你有任何隐瞒。
He kept back some of the facts.
他隐瞒了一些事实。
- 保留，留住：
The salesman always keeps the best items back for customers who often come to their store.
那位售货员总是把最好的商品留给经常光顾他们商店的人。
- 扣下，留下：
They keep back 30% of their wages for a special fund.
他们每月从工资中扣下30%来建立一项特殊的基金。