这年夏天，一连几天倾盆暴雨，引起山洪暴发，许多房屋被洪水冲走，人们流离失所。
B-Time I-Time I-Time I-Time O O O O O O O B-Thing I-Thing O O O B-Thing I-Thing O O O B-Thing I-Thing I-Thing I-Thing O B-Thing I-Thing O O O B-Person I-Person O O O O O