If you have glasses you know that optically focus has to do with bringing the light to a focal point in the back of your eye.

如果您戴眼镜，您就会知道，从光学的层面理解，焦点的意思是，将光线汇聚到您眼底的一点上。

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It's a communication tool so of course conversation is a focal point that Twitter is most successful at.

作为交流工具，交流自然是重点，也是Twitter最成功的服务。

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However, only one information focal point (that is, the pivot) should exist within a particular diagram type.

不过，特定关系图类型中应该只有一个信息焦点(即轴心内容)。

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Another new feature for 2012 is a zoom microphone that changes the focal point to match the picture so that what's seen can be more clearly heard.

ENGADGET: JVC's 2012 Everio 1080p camcorder lineup gains WiFi, enables geotagging and remote control via smartphone

Winter days in Solcavsko were made for meals such as this - leisurely, delicious, eaten around the large ceramic stove that is the focal point of every house.

BBC: Snowbound Slovenia

Defenders of the Canary Wharf tower point out that it has added a welcome focal point to scores of London's views.

ECONOMIST: Cityscapes