1 sentence

1. 医生要求患者留取粪便标本进行化验。

   yī​shēng yāo​qiú huàn​zhě liú​qǔ fèn​biàn biāo​běn jìn​xíng huà​yàn.

   The doctor asked the patient to provide a stool sample for testing.

   Source: Dong Chinese Dictionary