六级It is estimated that Antarctica boasts of the richest reserves of fresh water on earth.

据估计，南极洲拥有地球上最丰富的淡水储备。

四级And most noticeable of all, there is the phenomenon of large urban and suburban high schools that have split up into smaller units of a few hundred, generally housed in the same grounds that once boasted thousands of students all marching to the same band.

最值得注意的是，有这样一种现象：城市和郊区的大型高中已经分裂成几百个较小的单元，通常都位于曾经有数千名学生加入同一个乐队的同一场地。

六级( ' , Harvard, for example, boasts a six-year graduation rate for underrepresented minority groups of 98 percent)Christian Vazquez, a first-generation Yale graduate, is another exception, his success story setting him far apart from students such as Nijay.

（例如，哈佛大学就以代表人数不足的少数群体六年毕业率高达98%而自豪）耶鲁大学第一代毕业生克里斯蒂安·巴斯克斯（Christian Vazquez）是另一个例外，他的成功经历使他与尼杰（Nijay）等学生相去甚远。

六级For a start, you will now see plenty more women – the University of Pennsylvania's Wharton School, for example, boasts that 40% of its new enrolment is female.

首先，你会看到更多的女性——比如宾夕法尼亚大学沃顿商学院，夸耀40%的新入学者是女性。

六级Elsewhere in Antarctica, Russian researchers boast of their recent discovery of a freshwater reserve the size of Lake Ontario after drilling through miles of solid ice.

在南极洲的其他地方，俄罗斯研究人员夸耀他们最近在钻穿数英里厚的固体冰后发现了安大略湖大小的淡水保护区。

高考He wants these kids to learn to boast about themselves.

他希望这些孩子学会吹嘘自己。