若说某个局面是 black and white, 那意思就黑白分明，很容易判别错与对。

 

例句

 

I'm really sure about some things. I think free education for all is a black and white issue.

 

The question of nuclear power isn't black and white. Many people believe it is the only way to produce a large amount of clean energy - but many others think it has considerable¹ dangers.

 

请注意

 

短语 in black and white 的意思是白纸黑字，常用来形容某事被写下来作记录。

 

例句

 

I couldn't believe I had won the lottery², but when I checked my bank statement there it was in black and white: one million dollars!

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