181. Chances are that man will eventually land on Mars .

　　人类有可能最终登陆火星。

　　182. The likelihood for peace in the Middle East remains questionable .

　　中东和平的可能性仍让人怀疑。

　　183. The necessity for nuclear nonproliferation seems clear .

　　防止核扩散的必要性似乎清清楚楚。

　　184. It is perhaps more accurate to consider the family as a blanket of security , rather than a cloak of bondage .

　　把家庭看作保护安全的毯子可能比把它看做束缚的斗篷更确切。

　　185. While generalizations are dangerous , it is quite safe to present solid evidence .

　　抽象概括是危险的,但是,提供确凿的证据是万无一失的。

　　(责任编辑：田学江)