Country music star Taylor Swift announced she is giving five hundred thousand dollars to help victims of the flooding.

VOA: special.2010.05.17

Three plus five. I can take something to a power, double star, just take three to the fifth power.

+5，我也可以,求一个数的次方，例如求3的5次方。

麻省理工公开课 - 计算机科学及编程导论课程节选