限制 restrict (v)
place limits on (extent or access)
例句：He feels this new law will restrict his freedom.
他觉得这一新法律会限制他的自由.
confront 面对 (v)1. to face something or 2．To stand facing
例句：A soldier has to confront danger.
士兵须面对危险.
substitute （v）代替, 替换 to replace something
例句：She was dancing while someone substituted at the piano.