He is really somebody他真是个大人物！

He is really somebody
-- My uncle has 1000 men under him.
-- He is really somebody. What does he do?
-- A maintenance man in a cemetery.
他真是一个大人物
-- 我叔叔下面有1000个人。
-- 他真是一个大人物。干什么的?
-- 墓地守墓人。