患肥胖症的青少年人数增长速度更是惊人,在过去的四十几年中增加了2倍多。
Obesity among children is increasing at an even more alarming pace, having more than tripled in the past four decades.
调查结果显示,1973年英国儿童患哮喘的比率为5.5%;1988年这一数字增至12%,是过去的2倍多;到了2003年,这一数字进一步增长到27.3%,几乎是1973年的5倍,增长速度惊人。
Back in 1973, a project survey showed that 5.5 percent of children had been diagnosed with asthma.
无论是在内容方面还是在用户数量上它的增长速度是惊人的。
And it is growing with almost unbelievable impetus, both in content and in users.
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