你問的這些句子都是【比較級】的,所以翻譯中一定要體現(xiàn)出形容詞的比較級.

Lily的房間很整潔,而我的房間比她的更整潔.
Lily's room is very clean,however my room is cleaner than hers.
Sandy的畫是畫畫比賽中最漂亮的.
Sandy's painting is the most beautiful in the painting competition.
我要買商店中最貴的打印機.
I want to buy the most expensive printer in the shop.

那兩個男人中較胖的是我爸爸.
The man who is fatter in these tow men is my father.
你英語考試中越認真,犯的錯誤將越少.
More careful you are in the English test, Less mistakes will you make.