不由 (bú) — cannot help; cannot but; involuntarily

Definition

不由 (bùyóu) is an adverb meaning 'can't help / involuntarily', used before a verb to show an action happens on its own. Usually seen in the set phrase 由…不由… or followed by 地, e.g. 不由地笑了起来.

adverb

cannot helpcannot butinvoluntarily

Examples

，不由。
Tīng dào zhè ge hǎo xiāo xi, tā bú lù chū le xiào róng.
He heard the good news and couldn't help showing a smile.
，不由。
Kàn dào hái zi shòu shāng, mǔ qīn bú liú xià yǎn lèi.
Seeing the child injured, the mother couldn't help shedding tears.
不由。
Tā bú dì tàn le kǒu qì.
He couldn't help but sigh.

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