Step One Warm-up热身运动
Give one back-up把某人背起来
two self and one sum-up两自一归纳
Torque motor with one head-up力矩电机单头收线
One-up Nesting单排
ADD-ONE-UP加一法
One Touch Back-up功能
one-pointpick-up单点电视摄像管
One-up teaching method领先法
ADJ（形容词） having or having scored an advantage or lead over someone or something 占上风的 [非正式]