猝

抽搐，痉挛突然反射或痉挛的肌肉运动

阵痛突发的尖锐的痉挛痛

猛扭猛然而有力的扭曲或转动

风向的突然转变预示着暴风雨即将来临。

风向的突然改变暗示着一场暴风雨。

sudden death

sudden

sudden death

sudden clenching of the jaw

all of a sudden

sudden collapse

sudden death heart disease

sudden unexpected unexplained death