The next thing they'll see is this enlargement with the words Family Album,
他们接着看到的是U.S.A. Family Album, U.S.A.这几个放大的字。
is as the proportion of the total vocabulary of his mother tongue against those words of his own baby talk that are taken up into the vernacular of his family.
就好像他本国语言的总词汇量和自己咿呀学语时他家庭所接纳的他的词汇量之比。