實(shí)際上,look up the dictionary 和 look the dictionary up 從語(yǔ)法上來(lái)說(shuō)都是正確的,但有時(shí)候動(dòng)詞短語(yǔ)后跟的名詞或名詞性詞組太長(zhǎng),容易造成理解上的誤解,所以不管從習(xí)慣上還是理解上來(lái)說(shuō)會(huì)用look up the dictionary
舉個(gè)例子,The police found suspect hiding in the old small inn out.
The police found out suspect hiding in the old small inn.
兩句相比,第二句更清楚.
只有當(dāng)名詞或名詞性詞組,在上文出現(xiàn)過(guò),下文用代詞代替時(shí),才能用 look sth.up 的形式,比如,The police was told that the suspect was in an old small inn,and then they found him out.