memory n. 记忆,记忆力(memor+y)
memorize v. 记住,熟记(memor+ize)
immemorial a. 远古的;无法追忆的(im不+memor+ial→不能记得的→远古的)
memorandum n. 备忘录(memor+andum东西→[帮助]记的东西→备忘录)
commemorate v. 纪念(com共同+memor+ate→一起记→纪念)
commemorable a. 值得纪念(com+memor+able)
remember v. 回忆;记住(re再+member[=memor]→再记得→回忆;记住)
remembrance n. 回忆;记忆力(re+membr[=member]+ance)