我们孤单的来到这个世界，也将孤单的离开这个世界。

We come into this world alone, we leave the world alone.

youdao

沾沾自喜的已婚人士，不仅仅暗自窃笑孤单、寂寞的单身者，并且偶尔还能奢侈一下，因为已婚者比那些孤单者有钱得多。

Not only are the smug marrieds laughing up their sleeves at those who are alone and lonely, but they're also casually burning fivers because they've got so much more money than those solitary souls.

youdao

我是孤单的孤单孤单的。

I am lonely lonely lonely.

youdao

What I've learned which I appreciate so much is just to be reminded that I'm not alone, even I felt alone a lot of the times.

我所学到的让我珍视的,是提醒自己并不孤单，即便很多时候我感到孤独。

普林斯顿公开课 - 人性课程节选

So sometimes when you are living in another country, it can be very lonely.

有时候，当你在另一个城市居住的时候，难免会感到孤单。

在英语系国家 - SpeakingMax英语口语达人

There have been cases,gruesome as they may be, in which entire groups of people drink poison together so as to die not alone, but die together,die as part of jointly dying,dying as a group.

有过一些例子，虽然听起来很可怕，一群人一起喝毒药以免孤单的死去，而是共同死亡，作为群体行为的一部分。

耶鲁公开课 - 死亡课程节选