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jerking motion
auto. 跳,颠簸运
construct. 冲击〔断续〕运动; 振动; 脉〔抖〕动; 急跳; 颠簸; 爬行; 蠕动
tech. 跃动; 强烈颤动; 冲撞; 冲击运动
jerking motion
: 1 phrase in 1 subject
Weightlifting1