The theory is connected with the idea of fate or necessity.
这种理论是和运命或必然的观念联系在一片的。
Depending on the necessity, one can choose to maintain this or not maintain it.
取决于必要性，一个人可以选择维护这个或不维护。
Do you consider having a vacation every year a necessity or a luxury?
你觉得每年的假期是一个必需品还是奢侈消费？
Is "journey" a luxury or is it a necessity?
旅行对你来说是奢侈品还是必需品？
Doors are a necessity, whereas Windows are more or less a luxury.
门是住屋子者的需要，窗多少是一种奢侈。
Necessity (or Need) has (or knows) no law.
需要面前无法律。
Necessity (or Need) has (or knows) no law.
需要面前无法律。
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