So, again, there are several family informal versions for this: " grandpa" , " granddad" , and even " gramps" sometimes.
所以,同样,有几个家庭非正式版本:“爷爷” ,“爷爷”,有时甚至是“爷爷” 。
英语百科
Gramps
Gramps (formerly GRAMPS, an acronym for Genealogical Research and Analysis Management Programming System) is Free and open source genealogy software. Gramps is programmed in Python using PyGObject. It uses Graphviz to create relationship graphs.