通风口 tōngfēngkǒu vent Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 这个房间需要一个更大的通风口。 zhè gè fángjiān xūyào yī gè gèng dà de tōngfēngkǒu. This room needs a larger vent. Source: Dong Chinese Dictionary