be cruel to

基本解释

We shouldn't be cruel to animals.
我們不應該對動物殘忍。
As long as humans are cruel to animals, they will be cruel to each other.
衹要人類對動物殘酷，他們必然彼此殘忍。
We need to understand that if we're eating meat, we are paying people to be cruel to animals.
我們必須明白，如果我們喫肉，我們就是在付錢給別人殘忍對待動物。

They were very cruel. I thought,perhaps this beast can be taught to be my friend...
And this is line 679: Why should you be so cruel to yourself, And to those dainty limbs which nature lent For gentle usage and soft delicacy?
在第679行：，你爲什麽要對自己那麽殘忍，對於大自然賦予我們的四肢,衹文雅的使用和溫和的對待佳肴？
耶魯公開課 - 彌爾頓課程節選
The message of the flood story also seems to be that when humans destroy the moral basis of society, when they are violent or cruel or unkind, they endanger the very existence of that society.
而洪水所表達的信息是,儅人類燬掉了社會的道德根基，儅人類變得暴力，殘忍，這都會危及到人類社會的存在。
耶魯公開課 - 舊約導論課程節選

Instead of forcing us to replicate long swipe gestures using a mouse (which would be cruel to all concerned), Microsoft is putting forward these little key combos as the primary means of navigation on traditional desktop PCs that don't have touchscreens.
ENGADGET: Windows 8 upgrade diary: multiple monitors make my mouse mad