He jumped in and swam to the opposite bank.

他跳下水，游到对岸。

《牛津词典》

He jumped in; splash!

他跳了进去；水花飞溅！

youdao

He jumped in a puddle of honey.

他跳到了蜂蜜的坑里。

youdao

He jumped ninety-nine times in two years with the flying show.

VOA: special.2009.03.18

He jumped in front of the 385-foot marker and caught the ball above the fence.

WSJ: Murphy comes through in 8th, Mets edge Yankees

"He jumped in right beside her, " he said, and the girl managed to get both hands on Rocky's leash.

CNN: Hero dog helps pull girl from icy river

People who know Arredondo said Wednesday that they were not surprised that he jumped in to help the marathon victims.

NPR: Marathon Rescuer Gets Attention From Press And FBI