Be careful! Don't throw your cigarette out of the window. If you do that, you may start a fire. Put it out in the ashtray.
当心!别把香烟丢到窗外。要是你那样做,会引起火灾的。把它熄灭在烟缸里。
When work continued, one man lit a cigarette as he was working, but, finding it had a strange taste, he put it out.
随后他们继续干活,一个工人在干活时点燃了一支香烟。可是他觉得有一股怪味,他就把烟灭了。
I am sorry that you have a disagreement with your father. Personally, I think it is important to follow your interests and your abilities, and it sounds as though you have plenty of both of these already.