It's a bit tricky at first till you get the hang of it.

它在一开始当你还没掌握它的窍门的时候有些棘手。

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The controlling hardware is a tablet computer with buttons on the side, something like a portable games machine, and most people can get the hang of it in a couple of days.

“渡鸦”无人机的控制硬件是一台在侧面配有按钮的平板电脑，有点象一个便携的游戏机，大部分使用者能够在几天内掌握其使用方式。

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It requires a steady hand but it's addictive once you get the hang of it.

它需要你的手保持稳定，但是一旦你熟悉了，你就很容易上瘾哦。

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But you get the hang of it within a couple of weeks.

但几个星期过后你就能熟练。

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While salt-roasting might sound more complicated than simply baking fish, the technique is a cinch to get the hang of.

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But it takes a while to get the hang of the system.

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But it scans only one line of text at a time, which makes for a tedious process even after you get the hang of it.

CNN: Pen scanner reads, translates