n. one of two divisions of an academic year
n. half a year; a period of 6 months
n. 学期
1. This semester, I am taking three new courses.
这个学期，我选了三门新课。
2. The semester starts in September and ends in December.
学期在九月开始，十二月结束。
3. I need to study hard to improve my grades this semester.
我需要努力学习，以提高我这个学期的成绩。