There is no clear dividing line between what is good and what is bad.
是非之间没有明确的界限。
After repairing, no cracks, no hard points and no clear dividing line exist.
修补后铸件无裂纹、无硬点、无明显分界线。
There was, he suggested, no clear dividing line between what was acceptable and what was not.
他认为还没有明显的界限来区分哪种是可以接受的哪种是不可以的。
There was, he suggested, no clear dividing line between what was acceptable and what was not.
他认为还没有明显的界限来区分哪种是可以接受的哪种是不可以的。
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