通菜

see 蕹菜[weng4 cai4]

to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc

classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

dish (type of food) / vegetable / cuisine / CL:盤|盘[pan2],道[dao4] / (coll.) (one's) type / (of one's skills etc) weak / poor