重点词汇
-
字母
letter; character; lettering; grapheme; alphabetical; alphabetic
-
发明
invent; create; devise; originate; father; contrive; imagineer; think up; invention; innovation; discovery; contrivance; brainchild
Who invented letters?
字母
letter; character; lettering; grapheme; alphabetical; alphabetic
发明
invent; create; devise; originate; father; contrive; imagineer; think up; invention; innovation; discovery; contrivance; brainchild