久青草国产手机视频免费观看_毛片网站是多少_亚洲视频中文_一区二区高清在线

xyster

英 [z?st?] 美
  • n. 刮骨刀

英文詞源

xyster (n.)
"surgical instrument for scraping bones," 1680s, from Greek xyster "a graving tool," from xyein "to scrape," from PIE root *kes- (1) "to scrape."