Meaning of niào:
尿
to urinate
Xiǎo háizi tōngcháng xūyào jīngcháng qù cèsuǒ niào niào.
小孩子通常需要经常去厕所尿尿。
Children usually need to go to the bathroom to urinate frequently.
urine; CL:泡[pao1]; (coll.) urine
Yīshēng qǐng tā jiǎnchá niàoyè yàngběn.
医生请他检查尿液样本。
The doctor asked him to examine the urine sample.
Bǎobǎo zài chuáng shàng sāle niào.
宝宝在床上撒了尿。
The baby peed on the bed.
Yīshēng xūyào jiǎnchá zhège yàngběn zhōng de niào.
医生需要检查这个样本中的尿。
The doctor needs to examine the urine in this sample.