狼的恭顺的行为有两个层次：主动与被动。
There are two levels of submissive behavior: active and passive.
据我们所知，被动的吸烟与主动吸烟的危险同样严重。
As we all know, passive smoking is nothing less serious than "active" smoking.
与被动相反，你看到主动对你有益。
Instead of being passive, you see that taking charge is good for you.
被动式与主动式结构不同，用途也不同。
The structure and use of passive voice are different from those of the active voice.
被动式与主动式结构不同，用途也不同。
The structure and use of passive voice are different from those of the active voice.
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