箭不虚发虚：空。形容箭术高超百发百中。[查看详情]

百步穿杨春秋时代，楚国的养由基善射能百步内射中柳叶。比喻善射者。例奖射者曰有百步穿杨之巧，史，楚有养由基善射，去柳叶百步而穿之，百发百中。——《书言故事射艺类》英shoot an arrow through a willow leaf a hundred pass away,shoot with great precision;[查看详情]

百发百中指箭无虚发每射必中。例楚有养由基者，善射，去柳叶者百步而射之，百发百中。——《战国策》英every shot hits the target;比喻谋事计出必中。例预先给科学研究算命是很难的世界上不会有百发百中的科学神枪手呀。英certainly;[查看详情]

万无一失形容有把握一点差错也不会出。英no danger of anything going wrong; infallible; surefire; be perfectly safe; cannot possibly go wrong;[查看详情]