单词a-n-a-
The first thing Jim did when he got off the train was to look for a(n) A. porter because he had too much luggage with him.
因为吉姆带了很多行李，所以下了火车第一件事就是要找一个搬运工。
When I entered high school I was a(n) A-student, but not for long. I wanted the fancy clothes. I wanted to hang out with the guys.
当我刚进入高中的时候我是一个A等生，但是没过多久，我就开始想要买漂亮衣服，和男孩子一起出去乱逛。
Senior: a. , N. A student in the fourth year of high school or college.
四年级生，中学或大学的四年级学生。
a. n. A sudden or complete loss of courage in the face of trouble or danger.
丧胆，绝望在面临麻烦或危险时，突然或完全失去勇气，沮丧，灰心，气馁。