diff --git a/video/数学-2下-视频--饮品(和是4的加法)/交互1(1+3)正确答案.mp4 b/video/数学-2下-视频--饮品(和是4的加法)/交互1(1+3)正确答案.mp4 deleted file mode 100644 index 791b728..0000000 Binary files a/video/数学-2下-视频--饮品(和是4的加法)/交互1(1+3)正确答案.mp4 and /dev/null differ