It is important to consider amount of input, because not only do the languages of each person affect bilingualism; the amount of time each main input carrier spends with the child also has an effect.
考慮輸入量，因為不僅做每個人對雙語影響的語言是很重要的;每個時間主要輸入載波與孩子也具有效果花費的量。