The doctor noted spastic movements in his left arm.
医生注意到他左臂有痉挛性运动。
In everyday English, using “spastic” to describe a person is often considered offensive, so it’s better to choose neutral medical terms.
在日常英语里,用“spastic”来形容一个人往往被认为很冒犯,所以更好选择中性的医学表达。