不得不退 meaning in English

be obliged to retreat

The enemy had to fall back on the second line of defence .
敌人不得不退到第二道防线。
Dubian felt verydisappointedly , can not but draw back asks next , begs : " i do not wantthe salary , please let me free serve for your firm , may ?
渡边感到很失望，不得不退而求其次，央求道： “我不要薪金，请让我免费为贵公司服务，可以吗? ”
But the ' roo , which was wearing boxing gloves on its front paws , fought back , grappling with the clown who was forced back towards the ropes by its onslaught
前爪套着拳击手套的袋鼠，也进行反击，与对手扭打起来，小丑被打得不得不退到场边。