fling oneself on sb.'s compassion

例句：

1. 1. She flung the ball into the net with all her might.
   她用尽全力把球扔进了网里。
2. 2. The boy flung his arms around his mother in a hug.
   那个男孩搂着他妈妈亲了一下。
3. 3. He flung himself on the mercy of the judge, hoping to win a pardon.
   他向法官乞求怜悯，希望能获得赦免。