Why does one psychologically depend on another?

一个人为什么在心理上会依赖另一个人？

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The prices on a pricelist can depend on another list, which means that you do not have to repeat the definition of all conditions for each product.

一个价格表上的价格可以依赖于另一个价格表，这意味这你不用为每一个产品重复定义所有的情况。

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They depend on birds,bees or insects to spread their pollen to another orchid flower.

VOA: special.2010.04.06

Our economies depend on one another.

WHITEHOUSE: President Obama Speaks on Supporting Agriculture to Fight Hunger | The White House

The future may depend on whether it can start another revolution.

CNN: ASIANOW - TIME Asia | China: Blazing Refrigerators

One in seven Egyptians is said to depend in one way or another on the industry.

ECONOMIST: For a tourist, Egypt can be either