But if the puzzle is so huge, so difficult and so complicated that I can barely think it's doable, I need a strategy.

如果这个拼图很大、很难、很复杂，让我都不知道如何是好，这时候，我就需要一个策略了。

youdao

That's not the actual amount that they pay because the tax law is so complicated and there are so many loopholes.

但那并不是公司实际支付的税额,那是因为税法非常复杂并且有很多漏洞

耶鲁公开课 - 金融市场课程节选

So, we know ourselves that our behavior is due to a complicated cluster of the situation and our personal natures.

我们知道我们的行为是由于,一连串复杂的情况和我们的个人本性。

耶鲁公开课 - 心理学导论课程节选

All right, so let's think of a more complicated example of having a double bond, and maybe a more interesting example, and this is talking about benzene.

好了，让我们来看关于双键的,一个更复杂的例子，也许是更有趣的例子，我们要讨论苯环。

麻省理工公开课 - 化学原理课程节选

But the dealings are so dense (and so complicated by the cultural tussles across the language frontier, between French and Flemish speakers), that we start to wonder if Roskam is determined to lose us in the murk.

NEWYORKER: Bullhead

Nearly every industry at its outset produces goods and services that are so complicated and expensive that only rich people can afford them.

FORBES: Magazine Article

Lord Owen argues that the bill is now so fiendishly complicated, and so encrusted with amendments, that some sections of it simply cannot be sorted out by a process of adversarial amendment on the floor of the House.

BBC: Health and Social Care Bill: Lords marathon begins