利率平价的英文：
interest rate parity

interest是什么意思：
n. 兴趣；趣味；利息；利益；产权；利害关系；行业；势力
v. 使感兴趣；使参与

Interest will not lie.
兴趣不会说谎。

He had both fractional interests and majority interests.
他兼有零星的股权和大宗股权。

He had both fractional interests and majority interests
他兼有零星的股权和大宗股权。

parity是什么意思：
n. 平等，同等；平价；奇偶性

parity check digit
奇偶校验位

2 and 16 have the same parity.
2和16有相同的奇偶性。

This classification is called the parity of the permutation analogous to the definition of parity of integers.
这种分类叫作置换的奇偶性，类似于整数偶性的定义。