无延迟的 meaning in English

undelayed

Add winschool twister utp for teacher voice - over function ; intercom with one student , a group , or whole class ; to monitor students audio and video ; and for pairing and group talk support . learning functions
加上winschooltwister外置式设备，老师可以在学生收听的同时进行对讲、全通话、示范功能，也可以监听、监控学生的学习状态，更可以启动绝无延迟的两两对谈练习功能。