Uh, the security camera microphone is unidirectional.

监控摄象头上麦克风是单。

Consequently, the cultural exchange becomes unidirectional, with visitors observing rather than participating, and assimilating only what is selectively presented.

此，文化交变得单，参观者观察而不是参与，只吸收选择性呈现东西。

They probably had unidirectional air flow, just like modern birds do, making them very efficient at breathing, even while flying.

它们有单气，就像现代鸟类一样，这使它们即使在飞行时也非常有效地呼吸。

This unidirectional current flow could be controlled by varying the voltage to the cathode, which makes it release more or less electrons.

这种单以通过改变阴极压来控制，这使得它释放更多或更少子。

One of the reasons why React was so successful is because it took that unidirectional flow, brought it to the front end.

React之所以如此成功原之一在于，它采用了这种单数据理念，并将其引入到了前端开发中。