老年疾病通长都不是起于外因的。

Disorders of old age are generally not exogenous.

youdao

贫困家庭学生产生心理困境既有外因的影响，也有内因的影响。

The students from the poor family have bearing on the psychological predicament, and it has the external cause and the internal cause.

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相比之下，当前中东和平进程停滞不前，主要是因为缺乏上述内因与外因的双重条件。

Nevertheless, the current Middle-East peace process is still in stagnation, mainly due to the lack of both internal and external dynamics above-mentioned.

youdao

Because if you were unfettered by all those environmental things that make people eat different kinds of foods, most of you would probably like the high fat, high sugar foods better; most of you probably still do.

因为如果你可以不受这些环境因素影响,摆脱让人们吃各种不同的食物的外因,大部分人都会更喜欢高脂食品,或者高糖食品,你们中的大部分人可能依然如此

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选