然而，情况并不都是这样，交通警有时也很客气。
However, this does not always happen. Traffic police are sometimes very polite.
那边有一位交通警。你可以向他打听去车站的路怎么走。
There is a traffic policeman over there. You can ask him the way to the station.
一旦你把汽车停错了地方，交通警便很快就会发现。
If you park your car in the wrong place, a traffic policeman will soon find it.
结论汽车废气是使外勤警碳氧血红蛋白饱和度增高的主要因素，已对交通警察产生一定的健康影响。
Conclusion The automobile exhaust was a main factor resulting in higher levels of saturation of carboxyhemoglobin in exposure group and had a certain impact on traffic policemen's health.
然而，情况并不是都是这样，交通警有时也很客气。
However, this does not always happen. Traffic police are sometimes very polite.
你可曾目击一个交通警给你开了罚单又把它撕碎吗？
Did you ever witness a traffic warden take a ticket and rip it up?
交通警有时也很客气。
包过滤起交通警的作用，它分析你想到那儿去，你随身携带了什么。
The packet filter ACTS like a traffic cop; it analyzes where you are going and what are you bringing with you.
包过滤起交通警的作用，它分析你想到那儿去，你随身携带了什么。
The packet filter ACTS like a traffic cop; it analyzes where you are going and what are you bringing with you.
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