Hold in and Kept back

Hold in verb - Lessen the intensity of; temper; hold in restraint; hold or keep within limits.

Kept back and hold in are semantically related In some cases you can use "Kept back" instead a verb "Hold in".

Hold in and kept back are semantically related in repress topic. Sometimes you can use "Hold in" instead a verb "Kept back", if it concerns topics such as control, hinder, hold in check.