I thought, this is why I've travelled thousands of miles.

我想，这就是我走了几千英里路的原因。

This is why they must be free.

这就是为什么他们必须是免费的。

This is why I chose you, Blazer.

这就是我选择你的原因，布雷泽。

This is why I decided to become a librarian.

这就是我决定成为图书馆管理员的原因。

This is why we must be urgent about our mission.

这就是为什么我们的任务是如此紧急的原因。

This is why few locals in Seattle carry an umbrella generally.

这就是西雅图本地人通常很少带伞的原因。

This is why people who work outside the home have better health.

这就是不在家工作的人更健康的原因。

This is why many viruses, such as measles, make us ill only once.

这就是为什么许多病毒，如麻疹，只会使我们生病一次。

This is why a country such as Thailand attracts millions of people.

这就是为什么像泰国这样的国家能吸引数百万人的原因。

This is what gut decisions are—this is why we say they "feel" right.

这就是本能决定——这就是为什么我们说他们“觉得”对。

This is why alternative forms of tourism are becoming popular in the world.

这就是为什么其他形式的旅游在世界上越来越受欢迎。

Perhaps this is why many worry about the agonizing dullness of a jobless future.

也许这就是为什么很多人担心没有工作的未来会让人变得痛苦，令人沉闷。

This is why the word "five" in many languages is derived from the word for "hand."

这就是为什么在许多语言中，“五”一词从“手”一词中衍生而来。

This is why there are some Chinese sayings that connect emotions to the color of one's face.

这就是为什么有些中国谚语把感情和一个人的脸色联系起来。

This is why calls for a plant-based diet modeled on India risk offering another whip with which to beat already vulnerable communities in developing countries.

这就是为什么呼吁采用印度模式的植物性饮食会有可能给发展中国家的本已弱势的群体带来另一打击。

This is why repeated attempts at reform legislation have failed in recent years, leaving the Postal Service unable to pay its bills except by deferring vital modernization.

这就是为什么近年来立法改革的多次尝试都以失败告终，这使得邮政服务无法支付账单，除非推迟重要的现代化进程。

This is why translators should have a creative mind.

这就是为什么译者要有创造性思维。

This is why decorating with plants, fruits and flowers carries special significance.

这就是为什么用植物、水果和鲜花装饰具有特殊的意义。

This is why we have the expression that someone "sees red" when they are angry.

这就是为什么我们会说某人在生气时“看到红色”。

This is why there is a saying that if you want something done, ask a busy person to do it.

有句俗话说，如果你想做一件事，就请一个忙碌的人去做，看来也不无道理。

This is not standard procedure, but this is why I love my doctor.

这不是标准的流程，但这就是我喜欢我的医生的原因。

This is why the kind of place we live in is so important to innovation.

这就是为什么我们生活在哪一类区域对创新如此重要。

This is why researchers generally regard so-called moral guilt, in the right amount, to be a good thing.

正因如此，研究人员通常认为，所谓的道德负疚感，如若适量，会是好事。

This is why construct validation is very important to personality test development.

这就是为什么构想确立对性格测试的发展是很重要的。

This is why acroosteolysis and periosteal bone formation can be explained by the action of PGE2.

这就是为什么可以通过 PGE2 的作用解释肢端骨溶解和骨膜骨形成的原因。

This is why opposites attract.

这就是异性相吸的原因所在。

This is why this is so exciting.

这正是我们如此兴奋的原因。

This is why we create a test set.

这就是为什么我们要创建一个测试集。

And this is why I am here.

而这也是我在这里的原因。