If there's anything you need, just knock on my door.

有什么需要帮忙的话，尽管敲门来找我。

Smoking is addictive, and causes cancer, But the point I most want to emphasize is that it damages the health of those around you.

吸烟会上瘾，会引发癌症。但我最想说的是，吸烟同时也有损你的健康。

Too much tea will brown your teeth, but it's good for your health; so what are you going to do?

茶喝多了会把你的牙齿染黄，但对你的身体去有好处。因此你会怎么办？

Danger.

小心，危险。

A generation raised on junk food could turn out mentally vulnerable.

在零食中长大的一代人，注定精神脆弱。

I'm a student of the world; in other words I flunked out of high school.

我是社会学生，换句话说，我高中后就辍学了。