to make someone feel worried or angry

I didn't want to agitate her by telling her. 我不想告诉她，免得她焦虑。

to argue forcefully, especially in public, in order to achieve a particular type of change

The unions continue to agitate for higher pay. 工会继续大声疾呼要求加薪。

As a young man, he had agitated against the Vietnam war. 他年轻时曾公开反对越南战争。

to shake a liquid

Pour the powder into the solution and agitate it until the powder has dissolved. 将粉末倒入溶液中，搅动到溶解为止。