通风管

通风 tōngfēng HSK 7 #9,638

to ventilate / to air out / to let in fresh air

通风口 tōngfēngkǒu #11,507

air vent / ventilation opening

通风报信 tōngfēngbàoxìn #19,171

to secretly tip someone off / to leak information

通往 tōngwǎng HSK 7 #5,035

to lead to / to go to

通讯 tōngxùn HSK 6 #3,850

communications; telecommunication / news report; correspondence

通道 tōngdào HSK 6 #3,439

passage; passageway; corridor / channel; pathway

通信 tōngxìn HSK 3 #5,547

communication / to correspond / telecommunications

通话 tōnghuà HSK 6 #2,488

phone call; to make a phone call / to communicate by phone

气管 qìguǎn HSK 7 #10,761

windpipe / trachea / air duct

通行证 tōngxíngzhèng HSK 7 #5,876

pass / permit / laissez-passer