backchannel

基本解釋

Therefore English teachers should make efforts to motivate students to give more backchannel support.
因此，廣大英語教師應盡力激發(fā)學生的反饋支持，搞好教學。
Still, we think it would be a great idea. (Who wouldn't want to join a live backchannel of ABC's "Lost", for example?
（誰不想加入一個ABC公司的劇集”迷失“的即時回饋組呢？比如說，那個黑煙怪物是什么？）
This spawned system of backchannel communications that eroded trust between top executives.
這種狀況滋生了“打小報告”的溝通方式，同時令高層管理人員之間的信任度大打折扣。
Many scholars and English teachers have been studying backchannel support for years, which has great value in improving English teaching.
摘要基于廣大學者和英語教師對反饋支持的研究，筆者認為反饋支持對英語教學有很大的促進作用。
Given how rare the non-joiner is, it's quite amazing how much has been written on it (such as the BackChannel and Keith Gilbert's trick on using the non-joiner in bulletted lists.
最后，對于基于羅馬語系的語言極少需要(或者應該)使用可選分隔符。但是，在基于手寫體語言中，諸如阿拉伯或者波斯語，可選分隔符就顯得很重要。

a method of communication or discussion that is not direct or made public
to communicate or take part in discussions in a way that is not direct or made public