When you smoke, the burning of the cigarette creates something called carbon monoxide (CO) -- the same stuff that's created when your car burns gasoline.
当你吸烟，烟草燃烧产生CO——和你的汽车燃烧汽油产生的物质是同样的。
2
He lit a cigarette off the head of one whose filter I could smell burning, he’d smoked it so far down.
他点燃了一支已经吸过了的香烟，我甚至能闻到过滤嘴被烧着了的糊味儿。 他抽烟总是这么狠。
3
People may cut themselves on their wrists, arms, legs, or bellies. Some people self-injure by burning their skin with the end of a cigarette or lighted match.