Rewind 10sPausePlayForward 10s% buffered00:0000:0000:00UnmuteMuteDisable captionsEnable captionsSettingsCaptionsDisabledQualityundefinedSpeedNormalCaptionsGo back to previous menuQualityGo back to previous menuSpeedGo back to previous menu0.5×0.75×Normal1.25×1.5×1.75×2×4×PIPExit fullscreenEnter fullscreenPlay PH-052 实习教师课后辅导 登陆或免费注册收藏视频 3 次浏览
