My parents do their best to keep up the family tradition. 我的父母為了保持家庭的傳統竭盡全力。
There is no easy way to do business, and only those who do their best to win clients can win business. 做生意無捷徑可走，只有那些千方百計贏得客戶的人才能贏得生意。
Doctors do their best to treat the sick, but they can't perform miracles. 醫生儘力治療病人，但他們無法創造奇迹。
Many people think that enjoying school might spoil children for the real world, so they do their best to make it unpleasant. 很多人認為愜意的學校生活會寵得孩子們不能適應現實世界，於是他們儘力使學校環境不那麼稱心以免慣壞了他們。
