一半

例句：

1. 1. I need to eat half of the pizza before I finish it.
   我需要吃掉一半的披萨才能吃完。
2. 2. The team splits into two halves for the game.
   队伍分成两队参加比赛。
3. 3. She gave me half of her chocolate bar.
   她给了我她的巧克力的一半。