我拿照片当例子是想让它代表传统的传达设计的元素，我同样也可以拿印刷术、插画技术、动画设计、平面设计等做例子，因为思想同样适用。

I chose photography as an example for a classic communication design instrument, but the ideas are also applicable to typography, illustration, motion design, graphics, and the like.

youdao

照片上的微笑跟婚姻成败之间的关系也适用于城镇居民，即使许多照片是参加测验的志愿者们的童年照。

The relationship between smiling and divorce also held up among townspeople, even though many sent photographs of themselves as children.

youdao

当然这并不是一定的，你也可以打破这些规矩，但是我发现除非是那些特别惊人的照片。第三定律(rule of third)总是适用的。

Of course rules are meant to be broken - but I find that unless it's a very striking image that the rule of thirds usually works here.

youdao