打开 打开YouTube。 选择要下载的视频。 复制视频地址。 打开Convert2MP3网站。 点击"插入视频链接"文本框。 粘贴刚才复制的视频地址。 点击视频地址右边的mp3方框。 点击下拉菜单中的mp4。 如有必要，选择视频质量。 点击"插入视频链接"文本框右边的橙色转换按钮。 点击页面中间的绿色下载按钮。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Click or double-click the Chrome app icon, which resembles a red, yellow, green, and blue sphere. Go to https://www.youtube.com/ in Google Chrome. This opens the YouTube home page. Search for a video by entering its name into the search bar and pressing ↵ Enter, then click the video you want to download to open it. Click the video's address in the address bar at the top of the Chrome window, then press Ctrl+C (Windows) or ⌘ Command+C (Mac) to copy it. Go to http://convert2mp3.net/en/index.php in