keep back

隐瞒； 保留； 阻止； 阻挡

At the same time, watch any vehicles in front of you on the ramp and keep back a safe distance.(同时，注意观察你前方同在匝道上驶行车辆并保持安全的距离。)

Deeply moved by the play, she could hardly keep back her tears.(她被那出戏深深感动了，禁不住流下了眼泪。)

I will keep back you make trouble.(我将阻止你惹麻烦。)

She struggled to keep back her tears.(她努力地忍住泪水。)

Martin shook his head, but he had failed to keep back the wolfish, hungry look that leapt into his eyes at the suggestion of dinner.(马丁摇摇头，但是他听见吃饭时眼里所流露出的饿狼般的馋相，却无法掩饰。)

Keep back straight and bend knees.(背要直，只弯两膝。)

Keep back! The building could collapse at any moment.(别靠近！那建筑物随时可能倒塌。)

She was unable to keep back her tears.(她无法忍住泪水。)

So, you will keep back the tears, because I believe that a happy ending.(所以，巨蟹会忍住泪水，因为相信着美好的结局。)

The soldiers flooded the countryside in order to keep back the enemy.(士兵们涌进乡村以击退敌人。)

verb

1. hold back
refuse to hand over or share

e.g. The father is withholding the allowance until the son cleans his room

Synonym: withhold

2. secure and keep for possible future use or application

e.g. The landlord retained the security deposit
I reserve the right to disagree

Synonym: retainholdhold back

3. keep under control
keep in check

e.g. suppress a smile
Keep your temper
keep your cool

Synonym: restrainkeephold back

1. 留存，保留（…的一部分）
If you keep back part of something, you do not use or give away all of it, so that you still have some to use at a later time.

e.g. Roughly chop the vegetables, and keep back a little to chop finely and serve as a garnish.
大致切一下蔬菜，留下一点切细用作饰菜。

2. 隐瞒；保密
If you keep some information back, you do not tell all that you know about something.

e.g. Neither of them is telling the whole truth. Invariably, they keep something back.
他俩谁也没把全部实情都说出来。他们总是要隐瞒些什么。