天渊之别天壤之别tiān yuān zhī biéas different as heaven from abysm—completely diffe reent; as different as chalk from cheese; a vast (/wide/world of/whale of) difference; worlds (poles)apart;/这两种态度有～。The two attitudes are worlds apart.
❍ 他的思想与我们的有天壤之别。His thinking is as different from ours as heaven from earth. |