本文朗读配乐：@fish

What is the moment when you feel/felt you are alone?
什么时候你觉得特别孤独？

获得7k好评的答案：@Ashish Sharma

Going to the college canteen, ordering your stuff.. And then you look around, you see people you know..in groups, chatting, laughing, enjoying.. You take your meal, find a lone place, and sit there. Nothing to share, no one to care.
到学校的餐厅里，点了自己的吃的……然后你看看周围，你发现他们都是成群结队的，聊天，大笑，尽情享受……你领了饭，找了个僻静的角落，坐下来。无话可说，无人可想。

Loneliness isn't when you are alone in a deserted place.. It's when you are alone in a place full of faces.
孤独不是你独自身在沙漠……而是你在热闹里孑然一身。

获得7.1k好评的答案：@Shreshta Bhat

Here's a poem I found on Tumblr:
这是我在汤不热上发现的一首小诗：

I like drinking tea alone, and reading alone.
我喜欢一个人喝茶，一个人读书

I like riding the bus alone, and walking home alone.
我喜欢一个人坐车，一个人走回家

It gives me time to think, and set my mind free.
这让我有时间思考，让思绪奔跑

I like eating alone, and listening to music alone.
我喜欢一个人吃饭，一个人听歌

But when I see a mother with her child;
但是当我看到一位母亲带着孩子

A girl with her lover;
一个女孩依偎着她的爱人

Or friends laughing with their best friends;
或是朋友们和挚友开怀大笑

I realize that even though I like being alone
我才发现，即使我喜欢独处

I don’t fancy being lonely.
还是讨厌孤独。

获得3.1k好评的答案：@Bhavesh Mehta

When a good book series that you have been digging for days and nights and months and years ends. The characters of the book becomes a part of your life, like a friend or a companion but eventually after all the emotions and melodrama it's over. It's like having a separation anxiety but in a different way.
你日日月月白天黑夜都读的好书读完了。书中的人物成为了你生活的一部分，像一位朋友，一位伙伴，但是都随着所有的情绪和情节的结束而终结了。就像以一种不同方式经历了一场告别。

获得1.7k好评的答案：@Poonam Arora

Scrolling through the phone book, and not able to find a single person to call and share how tensed I am....
翻遍了手机通讯录，却找不到一个可以打电话的人，告诉对方我有多紧张……

That's when I feel alone and lonely.
那就是我感到孤独的时候。

中文神补刀回答：@Anelva

我可以一个人吃饭，一个人上学回家，一个人逛街，一个人唱歌，一个人看电影……只是可不可以在我一个人做这些事情的时候不要让我碰到认识的人。

也许我们的寂寞孤独来自别人的目光。