通乳

通乳	tōng rǔ	(medicine) to unblock breastmilk flow (of a nursing mother with clogged milk ducts)
通	tōng	to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc
通	tòng	classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)
乳	rǔ	(bound form) breast / (bound form) milk / (bound form) newborn; suckling