If time and place allow, consider and prepare audio-visual aids.
如果时间和地点允许的话，考虑并准备好视听教具。
When recording audio and video at the same time, it's hard to be perfect.
当录制音频和视频在同一时间，很难完美。
This is the first time I got Audio Technica IEM.
这是我第一次搞老铁的入耳。
Therefore, a long time ago came to me to the administrator of the audio-visual.
所以，一早就来找我这个电教管理员来了。
But listening to every extracted audio track is a waste of time.
不过，听每提取的音轨是时间的浪费。
RTP is an Internet protocol for the transport of real-time data, e. g. audio and video.
RTP是传输实时传输(比如音频和视频)的一种互联网协议。
RTP is an Internet protocol for the transport of real-time data, e. g. audio and video.
RTP是传输实时传输(比如音频和视频)的一种互联网协议。
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