如果人们少报了总开支，却对食物开支不隐瞒，这样恩格尔系数就人为的调高了。
If people underreported their overall spending, but told the truth about their food spending, their Engel's coefficients will be artificially high.
这种黑物质不发光，但它远远重于银河系数以亿计的恒星，使银河系的总质量达到太阳的一至二万亿倍。
While it emits no light, this dark matter far outweighs the Milky Way's hundreds of billions of stars, giving the galaxy a total mass one to two trillion times that of the sun.
当关系数据库试图在一个单一表中存储数TB的数据时，总性能经常会降低。
When relational databases attempt to store terabytes of data in single tables, overall performance typically degrades.
应用推荐