The specific operation steps are as follows:

1. First, enter "Cool Dog mv" in Baidu, and then click "Baidu Yi" to search, as shown in the following figure, and then enter the next step.

2. Secondly, select "Cool Dog Music" to open it, as shown in the figure below, and then go to the next step.

3. Next, enter the Cool Dog Music interface, find the required MV, open it, as shown in the figure below, and then go to the next step.

4. Then, you can see that the mv is playing now, as shown in the figure below, and then go to the next step.

5. Next, find the link of the video and copy it, as shown in the figure below, and then go to the next step.

6. Then, find the Shuo software installed in the computer, double-click it to open it, as shown in the figure below, and then go to the next step.

7. Then, in the opened software interface, find the blank column and click it, as shown in the figure below, and then go to the next step.

8. Then, paste the video link you just copied into the blank column, click the "Start" button, as shown in the figure below, and then go to the next step.

9. Then, in the window that appears, click "Download this video with Shuo Dao", as shown in the figure below, and then go to the next step.

1. Then, click the download button of the special chain for Shuo, as shown in the figure below, and then go to the next step.

11. Then, in the pop-up window, select the storage location, click OK, as shown in the figure below, and then go to the next step.

12. Then, you can see that the mv has started downloading in the list below, as shown in the figure below, and then go to the next step.

13. Then, after the download is completed, you can see the mv prompt in the downloaded list, indicating that the download has been completed. As shown in the figure below, and then go to the next step.

14. finally, the mv is downloaded and saved on the computer desktop, as shown in the figure below.