大雁不时在天空飞过，燕子箭一般来去，乌鸦嘎嘎鸣叫，鸽子群群飞翔，麻雀如淡淡灰云倏忽盘绕。
B-Thing I-Thing O O O B-Location I-Location O O O B-Thing I-Thing O O O O O O B-Thing I-Thing O O O O O B-Thing I-Thing I-Thing I-Thing O O O B-Thing I-Thing O O O B-Thing I-Thing O O O O O