grandfather /ˈɡrændˌfɑ:ðə/ n. [c](外)祖父:His grandfather is a veteran of the Second World War.他的祖父是一位参加过二战的老战士。 

grandmother /ˈɡrændˌmʌðə/ n. [c] ()祖母:Her grandmother is still alive.她的祖母仍然健在。