一是一，二是二

yī shì yī , èr shì èr

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Definitions

1. lit. one is one, two is two (idiom)
2. fig. things are (or ought to be) perfectly clear-cut
3. unequivocal

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Child Words of 一是一，二是二

• 一 一 yī: one
• 二 二 èr: two
• 是 是 shì: to be (followed by substantives only)