dive in

• • (头先入水地)跳水，头朝下跳入水中：

    She dived in off the high board.

    她从高台跳板上跳水。

    He dived in first and test the temperature of the water.

    他先跳入水里去，试试水温。

  • [口语]开始参加(某项)活动；开始吃，大吃：

    I dived in when the game started.

    游戏开始时我就参加进去了。

    Let's dive in,supper is ready.

    晚饭好了，咱们吃吧。