a)STOP MOVINGif an engine or part of a machineseizes up, its moving parts stop working and can no longer move, for example because of lack of oil 〔发动机或机器部件因缺油等〕卡住,停止运转
The mechanism had seized up.
机械装置停止了运转。
b)STOP MOVINGif a part of your body, such as your back, seizes up, you suddenly cannot move it and it is very painful 〔背部等身体部位〕突然僵痛