这种病毒性疾病是世界上最有破坏性的家畜类疾病之一。
The viral sickness is one of the world's most destructive diseases of livestock.
自从1981年首次发现艾滋病以来，艾滋病已经夺去了2千8百万人的生命，成为有史以来最有破坏性的传染病之一。
AIDS has killed about 28 million people since it was first recognized in 1981, making it one of the most destructive epidemics in recorded history.
最有可能的操作最有用的且无破坏性的命令应该在左软键(SK1)上显示而不要在右软键(SK2)菜单里面再次重复。
Most likely action the most useful non-destructive command should appear on the left soft key (SK1) and should not be repeated in the right soft key (SK2) menu.
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