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 handle the latest games.

升级到5.0版本需要395英镑。

The ___upgrade to version 5.0 costs £395.

安装定期的软件升级有助于防范病毒。

Installing regular software ___upgrades helps protect against viruses.