Compared with 2001, the distribution of cases shifted to older age groups (especially the 10-14 year group).

与2001年相比，病例的分布转向年龄更大的年龄组(尤其10 - 14岁年龄组)。

youdao

We gather as a group once or twice a year, for old times' sake, and get loaded.

为了过去的时光我们每年都会聚一两次，并喝得大醉。

《柯林斯英汉双解大词典》

Ranking schools is always controversial, and this year a group of 38 superintendents from five states wrote to ask that their schools be excluded from the calculation.

学校排名一直存在争议，今年来自五个州的38名主管写信要求将他们的学校排除在排名范围之外。

youdao

This year,most performances took place in the center of Washington in a group of old buildings that used to be businesses.

VOA: special.2009.08.05

Looking at this particular group, he estimated survivorship bias to be 4.4% per year and backfill bias to be 7.3% per year.

分析这个特定的样本,他估算其生存偏差每年达到4.4%,回填偏差每年达到7.3%

耶鲁公开课 - 金融市场课程节选

So, you may or may not know this about your TAs, but this is a pretty competitive group of TAs we have this year, and they like to brag about how smart their recitation is, how good questions they're getting in the recitation section.

不知道你们是否知道这与你们的助教有关，但是今年我们的助教们,都非常有才，而且他们都想向别人炫耀一下，自己的讨论课做得有多漂亮，回答的问题有多好。

麻省理工公开课 - 化学原理课程节选

For instance, in England in the early 1980s only about 10% of the year group achieved three A-levels.

BBC: Massachusetts: Pioneering Gove's knowledge curriculum

The education ministry in Paris dictates how many hours a week are devoted to each subject for each year group.

ECONOMIST: French education

But because it involves tracking each year group of pupils, it has taken five years to produce the first results.

BBC: NEWS | UK | Education | How 'value added' works