使用电脑鼠标或轨迹球鼠标有时候非常棘手。

Use a computer mouse or trackball may be a little tricky.

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睁着大大的眼睛，我们的女儿问：”鼠标有多大？

Wide-eyed, our daughter asked, "How big was the mouse?"

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同时也要记住，如果你的鼠标有滚轮，按住滚轮或者空格键都可以使用抓手工具。

Also keep in mind you can hold the Space Bar or the Scroll Wheel button if you have one on your mouse to enable the Hand Tool as well.

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不仅手工操作不很灵敏的用户发现鼠标使用起来有问题，有许多经验丰富的计算机用户，特别是打字员，也发现使用鼠标有时存在困难。

Not only do the less manually dexterous find the mouse problematic, but also many experienced computer users, particularly touch-typists, find the mouse difficult at times.

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不仅手工操作不很灵敏的用户发现鼠标使用起来有问题，有许多经验丰富的计算机用户，特别是打字员，也发现使用鼠标有时存在困难。

Not only do the less manually dexterous find the mouse problematic, but also many experienced computer users, particularly touch-typists, find the mouse difficult at times.

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