确保你的浏览器是最新的，以避免安全风险。

Make sure your ___browser is up to date to avoid security risks.

我用网络浏览器来为我的学校项目研究课题。

I use a web ___browser to research topics for my school projects.

许多人因为速度和功能而偏爱某一个浏览器。

Many people prefer one ___browser over another for its speed and features.