slider

名词 slider:

1. a person who slips or slides because of loss of traction
   同义词：skidder, slipper
2. someone who races the luge
   同义词：luger
3. freshwater turtle of United States and South America; frequently raised commercially; some young sold as pets
   同义词：yellow-bellied terrapin, Pseudemys scripta
4. a fastball that curves slightly away from the side from which it was thrown

1. Select it to activate the slider bar on the right, then use the leave and right arrows to adjust the volume.
   使用时先选择该项，激活右边的滑动条，然后用左箭头或右箭头来进行音量调整。