吸 (xī) means “to breathe; to suck in; to absorb; to inhale”. It is an HSK 4 Chinese character in the HSK 3.0 vocabulary.
他深深地吸了一口气。
Tā shēnshēn de xī le yī kǒu qì.
He took a deep breath.
Updated: 2026-07-18