When traveling, it's important to brush up your ability to relay information.

旅游的时候，通过转播消息来提高你的能力这是很重要的。

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The filter of the utility model is composed of a roller for cleaning filtering materials, a roller for contaminated filtering materials, filtering materials, a driving motor, a time relay and a brush.

本实用新型的过滤器由清洁滤料滚筒、已污染滤料滚筒、滤料、驱动电机、时间继电器和刷子组成。

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