One side effect of using it is that in its default mode, both the meeting host and the first person to join will get the acceptance requests from every other person wishing to join the session.
使用它有一个副作用：在默认模式中，会议的主持人和第一个加入者会收到其他每个希望加入会议的人员的接受请求。
There are generally two modes of USB technology could be used in embedded systems, one is the USB device mode using as USB Devices and the other is USB host mode using as USB Host Controllers.
USB技术在嵌入式系统中有两种主要的应用方式：即作为USB总线设备的USB设备方式和作为USB主控制器的嵌入式USB主机。
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