一排排的松树叶子泛红了，草原说“它们是冬的红娘”，后面就是雪花的日子。
B-Metric I-Metric I-Metric O B-Thing I-Thing I-Thing I-Thing O O O O B-Location I-Location O O B-Thing I-Thing O O O B-Thing I-Thing O O O O O O B-Thing I-Thing O O O O