tree 363627c78de908bd04383238e44f00a182f2b6be
parent 7d11034fce3b8d54bf0bdb42ef92209a96706d4c
author plainheart <yhen@all-my-life.cn> 1611544661 +0800
committer plainheart <yhen@all-my-life.cn> 1611544689 +0800

update the statements about PPMC because of the graduation.