And that safety, every time a tin was opened, sharp, jagged edges were left, lying around.

那就是安全，每次打开一个罐头，就会留下锋利的锯齿状边缘，到处都是。

And then of course, at the very far left edge is a half a face of Abraham Lincoln.

当然，在最左边的边缘是亚伯拉罕林肯的半张脸。

We can easily see where the left edge of the pole starts, because there's a change in color that persists across many pixels vertically.

我们可以很容易地看到极点的左边缘从哪里开始，因为颜色的变化会在垂直方向上持续存在许多像素。

Special effects like bulleted lists and paragraphs whose left and right edges are both indented should be used very sparingly— avoid them as much as you can.

像项目符号列表和左右边缘都缩进的段落这样的特殊效果应该非常谨慎地使用-尽量避免使用它们。