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Although the results can be unpredictable and require a little cleanup, it can give artists room to experiment (实验) by cutting down the time it takes to color each picture.

虽然结果可能不可预测，且做完之后要稍作清理，但是它缩短了每幅图的上色时间，从而让艺术家有试验的空间。

youdao

A general trend can be recognized, but the details are usually unpredictable.

一般的趋势是可以识别的，但是细节通常是不可预测的。

youdao

She says people must keep up their guard against the virus, which is unpredictable and could change into a far more dangerous form.

VOA: standard.2009.12.29

Language has powers that are entirely unpredictable, that can't be harnessed in precisely that deliberate way: by making a decision to take someone's words in the wrong way, or by telling a story to make a moral point, as the mother does.

语言的力量无可估量，绝不是单单使用一下那么简单：,而是通过假意遵从，以及勾起人性良知的方式表达的。

耶鲁公开课 - 1945年后的美国小说课程节选

Clearly, it is not as potent and unpredictable a force as it was in 2010.

ECONOMIST: The plot against a long-serving Republican

In Dar es Salaam in Tanzania electricity is on only for two unpredictable hours a day.

ECONOMIST: Africa��s fast-growing middle class has money to spend

The other reason, possibly linked to the first, is that a series of unpredictable results has produced a midterm points table that bears little resemblance to anything anyone expected.

WSJ: IPL Is Serving Up a Spicy Menu