Such events occur only when the external conditions are favourable.(此类事件只有当外界条件有利时才会发生。)
By contrast, an external system serves as an interface between a company and its customer base.(相比之下，外部系统是公司与其客户群之间的接口。)
They operate by eroding your trust in your own intellect, gradually convincing you to put your trust into some external entity.(它们通过削弱您对自己智力的信任，逐渐说服你把信任放在某个外部实体上。)
Those things that can be assessed by external tests are being given unduly high status.(那些能通过外部测试进行评估的东西受到过高重视。)
When objects are left at what you think is at rest with no external agency acting on them, they all slide back towards the rear end of the plane.(当物体掉在地上，你认为它们不受外力作用，保持静止时，它们却朝着飞机的尾部滚去。)
External recovery refers to actions that take place outside of work.(外部恢复指的是工作之外的活动。)
Baudelaire regarded photography as "a very humble servant of art and science"; a medium largely unable to transcend "external reality".(波德莱尔认为摄影是“艺术和科学的一个非常卑微的仆人”；是一种很大程度上无法超越“外部现实”的媒介。)
Many external influences can affect your state of mind.(许多外在因素都可能影响人的心情。)
The continuation of biological rhythms in an organism without external cues attests to its having an internal clock.(在没有外部提示的情况下，生物体中生物节律依然能够延续，这能证明它体内有一个时钟。)
Psychologists take opposing views of how external rewards, from warm praise to cold cash, affect motivation and creativity.(对于外部奖赏（从热情的赞扬到冷冰冰的现金）如何影响积极性和创造力，心理学家持相反的观点。)
