It's in the bag. 看看你理解对了吗？

　　It's in the bag

　　十拿九稳，稳操胜券

　　释义：

　　(informal) if sth is in the bag, it is almost certain to be won or achieved 十拿九稳;稳操胜券

　　例句：

　　When the score got to 8 to 2, we knew the game was in the bag.

　　'I'll get the Republican nomination,' he assured me. 'It's in the bag.'