You have large rivers, large channels. And you have tiny rivers and tiny channels.

即有大河，宽敞的渠道，也有小河，狭窄的渠道。

This is similar perhaps to how large channels, called " canali" formed on the surface of Venus.

可能这些结构相似于金星表面被称作canali的巨型通道。

You can learn stuff from experts like HTML, Photography or even how to animate your own YouTube videos from the largest YouTube channel in Germany — Kurzgesagt.

你可以从专家那里学习网页制作、摄影，甚至如何从德国最大的 YouTube 频道 Kurzgesagt 那里学习如何制作你自己的 YouTube 视频动画。