How to deduct 1 from Tencent meeting?

How to deduct 1 from Tencent:

Let me take the version number of Tencent Conference app 3. 1 1.4(443) as an example to show you.

1. First open Tencent conference, and then select the required conference type. Take the quick meeting as an example, as shown in the following figure:

2, and then choose to enter the meeting as shown in the figure below:

3. Click to say something again, as shown in the figure below:

4. Enter edit mode, enter 1, and then select Send, as shown in the following figure: