简述“防冒”、“防超” 和“防溜”的含义。
“防冒”是指防止车辆越过关闭的和出站信号机;“防超” 是指防止运行速度高于规定的限制速度;“防溜”是指防止接触网作业车溜逸。
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Writing：
Piracy is still a serious problem in China. Write a composition of about 400 words to state your view.
My coat__________ there behind the door. Can ’t you see it?
I am sorry I have no time at present to ____more detail or give you an account of other cities of interest.
The three men tried many times to sneak across the border into the neighboring country_____ by the police each time.