One of the variants of notebook mice is the Microsoft Arc Mouse.
笔记本小鼠的变种之一便是微软的弧形折叠鼠标。
Sometimes programmers erroneously force users to trace a circular arc with their mouse, which can be quite challenging.
有时，程序员错误地强迫使用者用鼠标来描圆弧，这是相当有难度的。
Sometimes programmers erroneously force users to trace a circular arc with their mouse, which can be quite challenging.
有时，程序员错误地强迫使用者用鼠标来描圆弧，这是相当有难度的。
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