single

单身的, 单程的, 单一的, 个别的, 孤独的, 专一的

used of flowers having usually only one row or whorl of petals; existing alone or consisting of one entity or part or aspect or individual

一个, 单打, 单程票

a base hit on which the batter stops safely at first base

选出

hit a single

击出一垒打

hit a single

单身的