Labeling needs a desktop-width browser. Open this page on a computer, in a window at least 1100 pixels wide. The labeling guide works on phones.
标注需要桌面宽度的浏览器。请在电脑上打开,窗口至少 1100 像素宽。标注指南可以在手机上看。
Labeling guide · 标注指南Continue anyway · 仍然继续