With so many stars in space, are we alone, or is there life on other planets in space?
太空中有这么多恒星，我们是唯一的吗，或者太空中其他行星上存在生命吗？
Are we alone in this universe?
在宇宙中仅存在我们人类吗？
我们在宇宙间是孤居的？
Are we alone here in this universe?
难道只有我们在这个宇宙中吗？
我们真是唯一的吗？
读就只有我们吗？
只有我们吗？
"Maybe we can answer the age-old question 'Are we alone?'"
也许到时候我们就可以回答那个古老的问题了——‘我们是孤单的吗？’
Ever look at the sky and wonder "Are we alone in the universe?"
许多人曾经仰望天空并且怀疑：“浩瀚宇宙中我们是孤单的吗？”
We would like to know the answer to the question 'Are we alone?
我们想知道这个问题的答案'我们是单独的吗?。
We are able to ask the question "are we alone in the universe?"
我们能够问出“我们在宇宙中是孤家寡人吗？”
This is an important discovery to answer the question 'Are we alone?
对于回答'我们是唯一的吗？ '这个问题，这个发现非常重要。
How life originated is very closely tied to the question, are we alone?
人们对于生命的起源疑问与此息息相关，在这个世界上我们是孤独的吗？
Famed astrophysicist Stephen Hawking has been thinking a lot about the cosmic question, "Are we alone?" the answer is probably not, he says.
著名天体物理学家霍金长久思考了这个宇宙问题：“我们孤独吗？”答案很可能是否，他说。
Vasopressin, an antidiuretic hormone, is another chemical that has been associated with the formation of long-term, monogamous relationships (see "Are We Alone in Love?").
垂体后叶加压素，一种抗利尿激素，又是一种与一夫一妻制的长久关系形成有关的化学物质（见“钟情者只有我们吗？”）
We are able to ask the question "are we alone in the universe?" because our ancestors created memes, turning Earth into a "two replicator", or R2, planet, rich in language and culture.
我们能够问出“我们在宇宙中是孤家寡人吗？”这样的问题，是因为祖先创造了各种模因，使地球成为一个有着丰富的语言和文化的“双复制因子”(或称r2)星球。
We are warning women not to go out on to the common alone.
我们在告诫女性不要单独去公共草地。
We want to know whether we are alone in the Universe.
我们想知道我们在宇宙中是否是孤独的。
In discussing whether we are alone, most SETI scientists adopt two ground rules.
在讨论我们是否孤独时，大多数SETI科学家会采用两条基本规则。
You are alone, you know, and we are seven.
你是一个人，你知道的，而我们是七个。
When he wanders along the road with his twisted stick we are all afraid to meet him alone.
当他拄着他那根弯曲的拐杖在路上闲逛时，我们都害怕单独遇到他。
As a wise man once said, we are all ultimately alone.
正如一位智者曾经说过的，我们最终都是孤独的。
We're born alone, but we are not living alone.
我们生而孤单，但并不是一个人独自生活。
And sometimes we are alone and want to have those same good feelings.
有时候我们很孤单，希望拥有那些同样美好的感觉。
Even when we are with our loved ones, we are still just as we are - alone.
即使和心爱的人在一起，我们也还是我们自己，也还是孤单的。
According to meme theory, humans are radically different from all other species because we alone are meme machines.
根据这一理论，人类与所有其他物种的本质区别在于我们是唯一的一种模因机器。
It's a shocking moment for each of us that moment we realize we are all alone in this world.
对每个人来说意识到自己孤独地活在世上都是无比震惊的。
It's a shocking moment for each of us that moment we realize we are all alone in this world.
对每个人来说意识到自己孤独地活在世上都是无比震惊的。
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