如今已成大人了，听儿时伙伴们说：最近几年，老家的槐树越来越少，代之而起的是挺拔的白杨。
O O O O B-Person I-Person O O O B-Time I-Time B-Person I-Person I-Person O O B-Time I-Time I-Time I-Time O B-Thing I-Thing O B-Thing I-Thing O O O O O O O O O O O O O O B-Thing I-Thing O