平滑肌 pínghuájī smooth muscle Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 人的内脏器官大多由平滑肌构成。 rén de nèizàng qìguān dàduō yóu pínghuájī gòuchéng. Most human internal organs are composed of smooth muscle. Source: Dong Chinese Dictionary