Because the first TOEFL test scores do not cross the border, at the first semester, I had to study the language courses in PIE at NAU.

因为第一次参加托福考试的成绩不过关，我在北亚利桑那大学的PIE里学习了一学期的语言课。

youdao

Several of the chants on Shaman Dancing are based on the ancient Proto-Indo-European (PIE) language.

个别撒满舞蹈时伴奏的圣歌是基于一种远古语言——原始印欧语(PIE)。

youdao