词根词缀com 加强 + memor 记忆;记 + ate 表动词 → 纪念 → commemorated 
词根记忆com(共同、一起[com-,con-… *  → commemorated 
谐音记忆可慢慢… *  → commemorated 
谐音记忆看妈妈… *  → commemorated 
对比记忆command n.命令
co… *  → commemorated 
词根记忆com(加强,一起,都) + mem… *  → commemorated 
谐音记忆看嬷… *  → commemorated 
词根记忆com(一起) + memor(me… *  → commemorated