be eager to have a try 跃跃欲试

“跃跃欲试”，汉语成语，意思是形容心里急切地想试试，可以翻译为“itch to have a try；be eager to have a try”。与英文俚语“as keen as mustard”意思相近，表示“very enthusiastic and excited (about or to do something)”。

例句：

很多毕业生在踏入这一行时都跃跃欲试，但是他们很快就失去了工作动力。

Many graduates enter the industry as keen as mustard but soon lose enthusiasm to work.

他再也坐不住了， 心里跃跃欲试。

He could hardly sit still and itched to have a go.