exceptional是什么意思？

But as it turns out, waiters see only a tiny bump in tips when they do an exceptional job compared to a passable one.

"Say, you know, this is the best student I've ever had," says Kuheli Dutt, a social scientist and diversity officer at Columbia University's Lamont campus. "Compare those excellent letters with a merely good letter: 'The candidate was productive, or intel

Compare those excellent letters with a merely good letter: The candidate was productive,or intelligent,or a solid scientist or something that's clearly solid praise, but nothing that singles out the candidate as exceptional or one of a kind.

Talent,charm,and an exceptional work ethic have rarely hurled any one of world's most successful entertainment icons and the first African-American female billionaire.