Not long before, son and daughter in USA had called me and said: "You can install the video equipment on computer, then we can face-to-face see each other's form and shadow."

不久前，孩子从美国打来电话说：“您在电脑上安上一个录像设备，我们通电话时，就可以面对面地看见彼此的形影了。”

youdao

To be clear: From within the cave, inhabitants could only look at shadows on the wall and not the form itself that was casting the shadow.

更清楚一些的说：外形一直在洞穴中，居住者只能看到墙上自己的影子，却不能在影子上看到真正的自己。

youdao

Technological innovation has changed the way we live and work, but also as the shadow follows the form of network and data security.

技术革新改变了我们的生活和工作方式，但网络与数据安全问题也如影随形。

youdao

Former President Daniel arap Moi's shadow is also back in parliament and the new upper chamber, the Senate, in the form of his two sons, Alexander and Raymond Moi.

BBC: Africa