Apply your best resources to the difficult or poorly understood components.

将最佳资源应用于难于理解或对其理解不透彻的组件。

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Forest decline is still poorly understood but leads to the loss of a high proportion of a tree's needles or leaves.

人们对森林衰退还知之甚少，但森林衰退会导致树叶和针叶大面积脱落。

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However, if done improperly or without careful consideration, you can create an insecure system, or at least one with poorly understood trust relationships.

然而，如果处理不适当或者没有认真考虑，则可能创建一个不安全的系统，或者至少是对信任关系理解不足的系统。

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But their products were complicated enough to create risks that were poorly understood - either by the trader himself, or by the people who were supposed to be overseeing him.

BBC: The psychology of the rogue trader