jump into :
1.
jump into 跳入
如：小鸭子们也很快地跳入水中.
The ducklings quickly jump in,too.
2.
jump into 跳进……
如：我们跳进了一个沙坑里.真有趣啊!
We jump into a sand pit.What fun!
3.
一头扎进 jump into
如：我非常难过,一头扎进被单和毯子里,像孩子一样哭了起来.
I buried my head under the miserable sheet and rug,and cried like a child.