我的电脑需要硬件升级才能运行最新的游戏。

My computer needs a hardware ___upgrade to run the latest games.

升级到5.0版本的软件需要395美元。

The software ___upgrade to version 5.0 costs $395.

最新的iOS系统升级显著改善了我手机的电池续航。

The latest iOS ___upgrade significantly improved my phone’s battery life.