重點講解：
1. according to 據…所說；按…所載；
According to a report in The British Medical Journal, children with higher IQs are more likely to grow up to be vegetarians.
根據《英國醫學期刊》中的一篇報告，高智商的小孩將來很可能是素食者vlwRLcYD2*7。
2. per capita 人均的；按人計算的；
They have the world's largest per capita income.
他們的人均收入居世界之首K2xK=,FcNB@mAqd。
3. on average 平均起來；按平均值；
On average, those in their thirties do 7.4 hours a week, equal to 43 days a year at their desks without being paid a penny.
平均來看，30多歲的單身女性每周無償加班7.4個小時，相當于一年有43天的工作沒有任何報酬@1(,k!+X1v0i+Ce~c。
4. serve as 用作；可當…使用；充作；
Knowledge is going to have to serve as the fulcrum of progress or provide the key to a decent survival.
知識必將成為發展的支柱，也將是改善生存環境的關鍵所在,n!@Ni&*_4。