I was a little scared at first because he used a smooth edged tool to scrape the skin on my neck and shoulders.

我一开始有点害怕，因为他用一种边缘平滑的工具刮我颈部和肩膀的皮肤。

youdao

A sharp tongue is the only edged tool that grows keener with constant use.

尖刻的舌头却是一柄唯一的愈用愈锋利的刀子。

youdao

As he is a hard edged surface against a flat background it should be fairly easy to select him using the Polygonal Lasso Tool.

因为相对于单一的背景，他有一个边缘分明的外观，所以，使用多边形套索工具选取他是十分容易的。

youdao