try to do sth.＝try one's best to do sth.
问题描述：
try to do sth.＝try one's best to do sth.
答
两个不完全一样：
try to do sth.＝work hard to do sth.努力做某事
try one's best to do sth.＝do one's best to do sth.
尽最大努力做某事/竭尽全力做某事.