To jump for joy 欢呼雀跃
如果形容某人 to jump for joy 意思就是他们非常高兴，兴高采烈，欢呼雀跃。
Lake Ohrid is one of Europe's deepest and oldest lakes. It straddles the mountainous border between south-western Macedonia and eastern Albania. It contains a unique aquatic ecosystem, with more than 200 endemic species, that is of worldwide importance. The lake was declared a World Heritage site by UNESCO in 1979.
Helen jumped for joy when her boyfriend asked her to marry him.
John jumped for joy when he discovered he had won the lottery!
The students were jumping for joy when they saw their exam results.
另一个短语 to jump the gun 意思是行动过早，操之过急。
Example: We don't want to jump the gun by announcing who's passed the exam until all the results are in.