您要查找的是不是：
- It will take up to six months to learn to deliver a positive knockout blow with either fist. 这需要六个月的时间学习用任意一只手发出足以击倒对手的重拳。
- The fight was won by a knockout. 这场拳击以一击将对方打倒而获胜。
- There is positive proof that he did it. 有确切的证据证明他做了此事。
- His new girlfriend is a real knockout. 他的新女友实在很动人。
- Her behaviour was a positive outrage. 她的行为残暴到了极点。
- I'm positive she told us to meet at noon. 我肯定她是告诉我们在中午见面。
- This charge is a positive charge. 这个电荷是正电荷。
- She shows a very positive attitude to her work. 她工作态度非常积极。
- He has a knockout of a girlfriend. 他有个挺漂亮的女朋友。
- Can you be positive about what you hear? 你对听到的话有把握吗？
- He has a positive attitude towards life. 他对生活持有积极的态度。
- Seeing the opponent was off guarded, the boxer landed a knockout punch. 乘对手不提防，那拳击手一下子把他击倒了。
- You really look a knockout in your new dress. 你穿上这条裙子真是出尽风头。
- The number of positive numbers is infinite. 正数的数目是无穷的。
- Are you positive that you saw him? 你肯定你看到他吗?
- Seeing the opponent was off his guard, the boxer landed a knockout punch. 乘对手不提防,那拳击手一下子把他击倒了。
- Seeing the opponent was off guard, the boxer landed a knockout punch. 乘对手不提防,那拳击手一下子把他击倒了。
- To defeat(a boxing opponent) by a knockout. 击倒对手通过击到对方而击败（拳击比赛中的对手）
- It has scored a knockout winning over token ring. 它已取得了决定性的胜利，打倒了令牌环网。
- positive knockout 直接式打料
