Is there an easy way to download all the videos in a zip?

[xlsxia]

I cannot watch the videos online smoothly (might because of the low bandwidth of my network). I want to download all the videos locally. It seems that I need to download them one after one. Is there an easy way to download all of them at once in a zip?

Thank you!

 

[GONG CHEN]

I believe you have to download them one by one.