乃是 (nǎi shì) — to be (formal, literary, often with emphasis)

Definition

乃是的 verb meaning 'is / none other than' is far more formal and literary than the everyday 是, and is typically used in writing to emphasize identity (especially in definitions or weighty statements).

verb

to be (formal, literary, often with emphasis)

Examples

乃是。
Zhè nǎi shì yí gè zhòng yào de zhuǎn zhé diǎn.
This is an important turning point.
乃是。
Tā nǎi shì wǒ guó zuì yōu xiù de yùn dòng yuán zhī yī.
He is one of the best athletes in our country.
乃是。
Xué xí nǎi shì zhōng shēn de shì yè.
Learning is a lifelong career.

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