说起来……calendar years的定义是啥？

在看学校SSN介绍版面上面突然发现了five calendar year……


原文：


J-1 and F-1 students should not have the Social Security or Medicare taxes withheld if they have been in the United States for less than five calendar years.


深深的思索了一下……如果是说五周年的话，那么我回中国之后就应该不算了吧……


如果不是的话，我从10年级就过来了，岂不是说要从大二之后就要开始付Social Security or Medicare taxes的节奏了么……0.0