An averagerecord store needs to sell at least two copies of a CD per year to make it worth carrying; that's the rent for a half inch of shelf space.
一个音乐制品店，平均每张CD至少在一年中要卖出两张，才能收回这张CD所占用的半英寸货架的租金。
2
The value of such forecasts is not to be judged by their averagerecord over several years, but by whether they signal problems and opportunities in advance of turning points.
这种预测的价值，并非体现在多年的平均记录，而是体现在能否在转折点之前显示出问题与机会的迹象。
3
Japan has a significantly better record in terms of average mathematical attainment than England and Wales.