n. a base hit on which the batter stops safely at first base
v. hit a single
a. used of flowers having usually only one row or whorl of petals
a. existing alone or consisting of one entity or part or aspect or individual
a. 单身的, 单程的, 单一的, 个别的, 孤独的, 专一的
n. 一个, 单打, 单程票
vt. 选出
vi. 击出一垒打
[计] 单精度型
1. I am single and enjoy my freedom.
我是单身，享受我的自由。
2. She bought a single ticket for the concert.
她为音乐会买了一张单独的票。
3. He lives in a single room at the university.
他在大学里住在一个单人房。