Fate is like the weather, it can be hard to predict, but often unexpected.

命运就像天气，可以尽努力地去预料，但往往出乎意料。

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Day, which will be hard to predict for people born under the sign of Taurus, Virgo and Capricorn.

金牛座、处女座和摩羯座人，今天将很难预测。

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Blocking methods can compromise responsiveness because it can be hard to predict when they will complete.

阻塞方法可能影响响应能力，因为难于预测它们何时会结束。

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It's hard to predict, my guess will be the latter.

这很难预料，我猜是后者。

普林斯顿公开课 - 国际座谈会课程节选

Just as the benefits of a new technology can be hard to predict, so too are its unexpected drawbacks.

ECONOMIST: Communications

The effects of an interest-rate rise in such times would be unusually hard to predict.

ECONOMIST: Assets and their liabilities

Consequences do flow from incorrect or selfish behavior but in the show, these are shown to be unexpected, hard to predict, and more to do with the loss of friendship than anything else, which in any context, is a disastrous outcome.

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