stone removal的用法和樣例：
例句
- The keys of treatment are to incise the left and right bile duct and remove stone under direct vision and dilate the bile duct stricture.
左右肝管切開，直視下取石及狹窄擴張是尾狀葉膽管結石治療的關鍵。 - A local warrior named Zhang PengYingwu immediately the rate of people fleeing the mountains to collect stone stockade, it was dangerous to guard, so that people survived.
當地一名叫張鵬的勇士忠毅英武，立即率百姓逃上山去，取石砌寨，據險把守，使百姓幸免於難。
