He felt suddenly faint, and his heart began to palpitate.

他突然感到晕厥，心脏也开始悸动。

The thought of flying makes me palpitate.

一想到飞行我就心情紧张。

How is giddy palpitate handled after drunk wine?

醉酒后头晕心慌怎么处理呢？

If you feel your heart palpitate a little, it doesn't matter.

如果您感觉心跳有点快，那是正常的。

To palpitate is to pulsate with excessive rapidity and often arrhythmically, as a malfunctioning heart might;

指象功能不正常的心脏一样过分快速且经常是有节奏地搏动；