install

你能帮我安装这个新软件吗？

Could you help me ___install this new software?

他们雇人来安装一套家庭安全系统。

They hired someone to ___install a home security system.

使用这个应用程序前，你需要在电脑上安装它。

Before using the app, you need to ___install it on your computer.