Dance
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.
2. 隐瞒；保密
If you keep some information back, you do not tell all that you know about something.
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
3. keep under control
keep in check
e.g. suppress a smile
Keep your temper
keep your cool