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
英文释义
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