canal, duct, fistula, guarantee, meatus, pipe, tube, wind instrument[化] pipe, tube[医] canal, canales, canalis, channel, duct, ductus, salpingo-, salpinx, syringo-, tuba, tube, tubi, tubing, tubo-, tubus, vas, vaso-, vessel

guǎn ㄍㄨㄢˇ