seize up phrasal verbphr v a) STOP MOVINGif an engine or part of a machine seizes 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
→ seize up at seize(4)