palpitate
/ˈpælpɪteɪt; `pælpəˌtet/ v
1 [I] (of the heart) beat rapidly （指心脏）急速跳动.
2 [I, Ipr] ~ (with sth) (of a person or a part of his body) tremble or quiver because of fear, excitement, etc （指人或身体某部分）颤抖, 颤动（因恐惧、 激动等）
palpitating with terror 吓得发抖.