slider

slider
noun

a North American freshwater turtle with a red or yellow patch on the side of the head
管龟，彩龟
Genus Trachemys (or Pseudemys), family Emydidae: several species, in particular the pond slider (T. scripta)
管龟属（或彩龟属)，龟科：数种，尤指黄腹彩龟（拉丁名T. scripta）
(Electronics)a knob or lever which is moved horizontally or vertically to control a variable, such as the volume of a radio
(电子)滑动调节钮
■(Computing)an icon mimicking such a knob or lever
(计算机)滑动块，活动块
(Baseball)a pitch that moves laterally as it nears home plate
(棒球)向外自然旋转球

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