grow up中grow是动词嘛,是用谓语的(注意时态),例如:When I grow up,I will buy every my family a nice laptop.(句意:我长大了,我要我的家人人手一台漂亮的笔记本电脑.)而growing是非谓语动词,不能作谓语,当在介词(包括但不限于)后,又要用到grow意时需将grow变为growing.如:Because of growing up,the pretty boy is having less words with his parents.
