熟知，书籍、电脑、香烟、打火机――这是我的“文房四宝”呀!“再吸一支烟不能再吸了，电脑再玩一个小时不能再玩了。
O O O B-Thing I-Thing O B-Thing I-Thing O B-Thing I-Thing O B-Thing I-Thing I-Thing O O O O B-Person O O B-Thing I-Thing I-Thing I-Thing O O O O O O O O B-Thing O O O O O O B-Thing I-Thing O O B-Metric I-Metric I-Metric I-Metric O O O O O O