而且难于操作
And difficult to operate
以上为机器翻译结果，长、整句建议使用 人工翻译 。
遗憾，它通常也 很 令人沮丧，难于操作，而且浪费像素。
Unfortunately, they are also typically quite frustrating, difficult to manipulate, and wasteful of pixels.
youdao
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