And the Essex study which has just been done in the U.K., which incidentally showed that when you do this, you do not just make a room that's suitable for hearing-impaired children, you make a room where behavior improves, and results improve significantly, this found that sending a child out of area to a school that does have such a room, if you don't have one, costs 90,000 pounds a year.
刚在英国埃塞克斯完成的研究表明， 把回响时间降至0.4秒 不但让有听力障碍的孩子 听得清晰， 学童的行为和成绩亦明显进步。 如你的区域的学校没有这种教室， 孩子须跨区上学， 每年开支是90,000镑。