“手舞足蹈”，汉语成语，意思是两手舞动，两只脚也跳了起来（dance with joy [excitement]）。形容高兴到了极点（be exuberant or very happy about something）。可以翻译为“be beside oneself with joy，leap for joy”。

例句：

你真该看看他听到自己获奖时手舞足蹈的样子。

You should have seen him prance about when he heard of the award.

得知这个消息，他高兴得手舞足蹈。

He jumped for joy at the news.