direct vision的用法和樣例：
例句
- Skilled sports people hiding their intended passes or moves by using their peripheral vision rather than looking directly.
熟練的體育運動員通過邊視覺而不是直視來隱藏自己的欲進行的傳球或動作。 - 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。
