1.(physically)to push sth back or to push back sth
+ object把…向后推
The woman pushed back her chair and stood up.那个女人把椅子往后一推, 站了起来。
+ person使后退
Police used tear gas to push back the crowds.警察使用催泪瓦斯使人群后退。
2.to push sth back or to push back sth
+ hair向后捋(头发)
3.(postpone)to push sth back or to push back sth推迟；推后
Her match was due to start at 12.45 pm, but it was pushed back by an hour.她的比赛原定下午12点45开始, 但是推后了一个小时。