I was crazy about being in the live class, why is it wrong, there is sound but no picture, there is a picture and no sound, the courseware can't be played, the card is dying, the key leaders are still listening to the class in the group, call me as soon as there is a problem, I'm already anxious. I don't know if it's a problem with the computer, a problem with the network, a problem with the software, or a problem with me. Also, what about the live beautification function? Why can't you find it alive or dead?!

The student always dropped and always asked why he was kicked out. My colleague went into the wrong room and asked me why she couldn't connect to the microphone. I'm dying in a live class.

There are fire, bad hearts, endocrine disorders, and dead hearts.

"The Return of the Painting Hall" is crazy and is hitting in the hand, please wait a while,

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