Many children in the class suffered severe social and economic disadvantage.

　　班上許多孩子都來自社會地位低下經濟困難的家庭。

　　One major disadvantage of the area is the lack of public transport.

　　這個地區的一大不便之處就是缺少公共交通工具。

　　Pollution is just one of the disadvantages of living in the town.

　　污染只是生活在城里的不利條件之一。

　　The advantages and disadvantages would appear to cancel each other out.

　　看來是利弊參半。

　　I hope my lack of experience won't be to my disadvantage.

　　但愿我的經驗不足不會使我吃虧。