When you pick flowers, fruit, or leaves, you break them off the plant or tree and collect them.
采摘 • She used to pick flowers in the Adirondacks. 她以前常去阿迪朗达克山采花。
You can refer to the best things or people in a particular group as the pick of that group.
精华; 精英 • The boys here are the pick of the high school's football players.