我也学会了控制我的压力，用锋利的边缘切割工具。
I've also learned to control my pressure using a sharper edge scribing tool.
他们轻轻触碰着那些被刻进冰冷金属里，朴素无华的大写字母锋利的边缘。
They touched the sharp edges of his name, carved into the cool metal in austere capital letters.
制造这种喇叭非常简单：塑料被融化制成模型然后安装，一群妇女磨平锋利的边缘，工序完成。
Making the trumpets is simple: plastic is melted into a mold and then it sets. A small group of women take off the sharp edges to finish off the process.
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