Subject + 哭泣
哭泣 (kūqì) is a verb meaning "to cry" or "to weep." It is more literary and formal than the everyday word 哭 (kū). It often conveys a quieter, more restrained form of crying, and is frequently found in written narratives and formal speech.
她一个人躲在房间里默默哭泣。
Tā yī gè rén duǒ zài fángjiān lǐ mòmò kūqì.
She hid in her room alone, crying silently.
听到那首歌,他忍不住哭泣起来。
Tīng dào nà shǒu gē, tā rěn bù zhù kūqì qǐlái.
Hearing that song, he couldn't help but start crying.
孩子的哭泣声从楼上传了下来。
Háizi de kūqì shēng cóng lóu shàng chuán le xiàlái.
The sound of a child crying came from upstairs.