Two 2W main speakers, two secondary speakers and a powerful sub woofer for the best sound experience.

杜比认证的扬声器：2个2W主喇叭，2个次喇叭，加一个低音炮。

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The continuously-variable phase circuit is adjustable from 0 to 180 degrees to finely integrate the subwoofer with the main listening speakers.

不断变化的相电路可在0至180度间调节，从而较好地将低音炮与主喇叭相结合。

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The speakers subjective attitude toward a proposition is one of the main factors in choosing conjunctions: they are markers of the theme.

说话人对命题的主观态度是选择不同连接词的主要因素，连接词因而是语句主题思想的重要标记。

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He also says non-native speakers generally use too much emotional language and give too many details before getting to the main idea.

VOA: special.2009.04.30

Brazil's World Cup winning coach, Luis Felipe Scolari, is one of the main speakers.

BBC: Egypt hosts World Cup forum

All of the system's components, including the main control unit, the processor, the speakers, the subwoofers and even one of the two remotes (the second "subremote" provides only basic functions) share an attractive rosewood-framed metal theme.

FORBES: Sounding Out Home Theater

The speakers in this event will address the main challenges and opportunities to support the growing momentum for PPPs in education through their innovative examples, impact evidence, successful criteria for sustainable partnerships, recommendations for effective partnerships, and support mechanisms that could facilitate these partnerships in education.

UNESCO: The UNESCO Courier