通知书

written notice

to notify / to inform / notice / notification / CL:個|个[ge4]

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)

to know / to be aware

abbr. for 書經|书经[Shu1 jing1]

book / letter / document / CL:本[ben3],冊|册[ce4],部[bu4] / to write