介绍： hold sb/sth back: to prevent sb/sth from moving forward or crossing sth

Eg: The police were unable to hold back the crowd.

hold sb/sth back: to prevent the progress or development of sb/sth

Eg: Do you think that mixed-ability classes hold back the better students.

hold sth back: to stop yourself rom expre...

介绍： hold sb/sth back: to prevent sb/sth from moving forward or crossing sth

Eg: The police were unable to hold back the crowd.

hold sb/sth back: to prevent the progress or development of sb/sth

Eg: Do you think that mixed-ability classes hold back the better students.

hold sth back: to stop yourself rom expressing how you really feel

Eg: She just managed to hold back her anger.