少妇被躁到高潮无码A片游戏_少妇被大狼拘躁A片免费_少妇被按摩师摸高潮了_少妇BBW搡BBBB搡BBBB_少妇AV_少 妇 白 洁全集TXT

Professional blue/green background precision image without defect, without distortion Perfect synthesis with virtual background to achieve high quality output

Multi - use of one machine, realize the integration of micro - lesson production and virtual video Start the shooting and recording mode of real micro-class and virtual micro-class.

It can meet the needs of various forms of video recording and live broadcasting, such as outdoor practice training, large-scale jousts and exchange activities, and is not limited by time and space.

It supports 1080P high-definition video and audio interaction, to meet the requirements of teaching scene recording. We will support applications such as classroom delivery, remote、 teaching and research to promote quality and balanced education in the region.