51. Chances are that man will eventually land on Mars .
人類有可能最終登陸火星。
52. The likelihood for peace in the Middle East remains questionable .
中東和平的可能性仍讓人懷疑。
53. The necessity for nuclear nonproliferation seems clear .
防止核擴散的必要性似乎清清楚楚。
54. It is perhaps more accurate to consider the family as a blanket of security , rather than a cloak of bondage .
把家庭看作保護安全的毯子可能比把它看做束縛的斗篷更確切。
55. While generalizations are dangerous , it is quite safe to present solid evidence .
抽象概括是危險的,但是,提供確鑿的證據(jù)是萬無一失的。
56. It seems almost certain that China will achieve this year's economic growth targets .
中國將完成今年經(jīng)濟增長的目標似乎是毫無疑問的。
57. Reaching this year's growth targets is almost a certainty .
達到今年的增長目標幾乎是必然的。
58. The urgency of the situation makes it necessary to reiterate the monumental problems of population growth .
情況的緊迫性使我們有必要重申人口增長的重大問題。