marker
n
1
(a) person or tool that makes marks 作标记的人或工具
[attrib 作定语]
a `marker pen 标记笔.
(b) person who keeps the score in certain games (某些比赛中的)记分员.
(c) examiner 主考人.
2 flag, post, etc, that marks a position (指示位置的)旗、 杆等
[attrib 作定语]
a `marker buoy 标志?quot;?