(1)move with abrupt, seemingly uncontrolled motions; "The patient's legs were jerkings"
(2)不意の、外見的には抑制できない動きを伴って動く
(3)make an uncontrolled, short, jerky motion; "his face is twitching"
(4)制御できない、短い、痙攣的な動きをする
(1)