英语语法分析

There are two types of Primary Indexes - unique Primary Index (UPI) and Non-unique Primary Index (NUPI).

有两种主索引—惟一主索引(upi)与非惟一主索引(NUPI)。

This UPI test result on 05 freshmen of our university indicates that, their psychological healthy condition is quite good, but also has certain problems.

通过对我院05级新生进行UPI测试结果表明：我院大学新生心理健康状况总体上是比较好的，但也存在一定的问题。

PERTH, Australia, Dec. 20 (UPI) — Breastfeeding for six months or longer is linked to better grades at age 10, but only in boys, Australian researchers say.

12月20日澳大利亚珀斯(合众国际社报道)——母乳喂养6个月或者更长的孩子在10岁的时候学习成绩会更好些，但是这仅仅局限于男孩子，澳大利亚研究人员表示。