put one's foot down 立定脚跟；坚定立场；拿定主张

【例句】
When those who kill him who pursued, he put one's foot down to hide, he is tough fight.
当那些要置他于死地的人穷追不舍时，他毅然决然地选择躲避，他要的就是韧的战斗。

My father goes nuts. I didn't mean to ruffle his feathers. He put his foot down and I'm not allowed to play online games any more.
我父亲发疯了。我没想惹毛他。他坚决再也不让我玩网络游戏了。