If you describe someone's policy or attitude as hardline, you mean that it is strict or extreme, and they refuse to change it.
例句
The United States has taken a lot of criticism for its hard-line stance...美國因其強硬立場遭到眾多非議。East Germany's last hardline Communist leader...東德最后一位強硬派共產(chǎn)黨領(lǐng)袖