一是一，二是二

Traditional form:

一是一，二是二

Pinyin (reading):

yīshìyī,èrshì'èr

Definitions:

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

Characters:

• 一 - one; a, an; alone
• 是 - to be; indeed, right, yes; okay
• 一 - one; a, an; alone
• 二 - two; twice
• 是 - to be; indeed, right, yes; okay
• 二 - two; twice

Traditional characters:

• 一 - one; a, an; alone
• 是 - to be; indeed, right, yes; okay
• 一 - one; a, an; alone
• 二 - two; twice
• 是 - to be; indeed, right, yes; okay
• 二 - two; twice