他得在放弃工作和放弃原则二者中择其一。他选择了前者。

He had to choose between giving up his job and giving up his principles. He chose the former.

《牛津词典》

原则二：你将会获得很多教训。

Rule Two: You will be presented with lessons.

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图标的可用性原则二：每个图标指向的映射关系应该是唯一的。

The two of the principle of available icon: every relation of the icon pointing should be only.

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