once and for all造句

1、Add sufficient cold water once and for all to stew fish, or else it will dilute its freshness.
用冷水炖鱼无腥味，并应一次加足水，若中途再加水，会冲淡原汁的鲜味。

2、This was payback time. I've proved once and for all I can become champion.
这是回报之时。我已经一劳永逸地证明我能成为冠军。

3、This new paper puts to bed once and for all the issue of how the Komodo dragon kills, Shaw says.
Shaw认为这一劳永逸地解决了科莫多龙如何杀死猎物的问题。