1、阻止
... keen 锋利的，敏锐的，敏捷的；热心的渴望的 keep back 阻止，阻挡，隐瞒，保留 keep down 控制，压制，镇压，压低，放底（声） ...
2、隐瞒
... Keep away (from) 远离；不接近；使离开 Keep back(from) 保持距离；抑制感情的流露；隐瞒 Keep off 保持距离；不接近；避免吃喝东西；当住阳光等 ...
3、抑制
... keep away 使离开 keep back 抑制（感情），忍住 keep busy 让…处于忙碌状态 ...
4、留在后面
... hold back阻挡；抑制；隐瞒 keep back留在后面；阻止…前进；隐瞒；扣留；妨碍 look back回头看；回顾 ...
Keep Your Back Straight保持背部挺直
not keep running back不要回头继续奔跑
keep p back留下;意为
Keep Your Back Relaxation保持腰部放松
Keep Doming Back持续热带
So Keep Checking Back所以继续回
They Keep Coming Back他们老起来
Keep Pushing Back坚持抵制
keep sth back拒绝给予或允许;保留某事物