小谢尔顿的经典短语及其英文对照如下：

Because I don't know what's real.

因为我不知道什么是真实的。

To be or not to be, Shakespeare onto something.

生存还是毁灭，莎士比亚一直在想这个问题。

What's wrong？

怎么啦？

He's been cutting classes.

他逃课了。

I've always loved trains.

我从小喜欢火车。

If my career in theoretical physics hadn't worked out, my backup plan was to become a professional ticketer or a hobo.

如果我理论物理学的工作当初没成，我的后备计划是打算当一个职业检票员或流浪汉。

I am a man of science, not someone's struggle bunny.

我是个搞科研的人，不是某人的抱抱兔。

There's a bird outside the window, and it won't go away. That is the hell that is going on.

窗户外面有只鸟，死活不肯走。

Look at him. Breaks my heart. Poor little guy, all alone.

你看他，我心都要碎了。可怜的小家伙，形单影只。

I bet I could be your hero.

我相信我能当你的英雄。

I am a might little man.

我是个了不起的小家伙。

That was the best trip I ever had. I wish I'd told my father while he was alive.

那是我曾经有过的最美好的旅行。我希望我在父亲生前告诉他。

这些短语展示了小谢尔顿的独特个性和他在《生活大爆炸》中的经典时刻。希望这些对你有所帮助。