一位中国母亲到日本去看望儿子,住在儿子的寓所里。有一段时间,儿子出差在外,母亲天天收到一份通知,因为看不懂 日文,心里很焦急。儿子回来后,她把一叠通知单交给儿子,问他上面写着什么。儿子查看过所有的通知单后,笑着告诉母亲 这是自来水厂寄来的,上面写着:“尊敬的用户,我们发现您在这个月的用水量激增,可能是水管漏水了, A Chinese mother went to Japan to visit her son and live in her son's apartment. For a period of time, my son was on a business trip, and my mother received a notice every day because I could not understand Japanese. After her son came back, she handed over a stack of notices to her son and asked him what was written on it. After the son has reviewed all the notices, he smiled and told his mother that it was sent by the waterworks and said: "Dear users, we found that your surge in water consumption this month may be a water leak,