Their presence, sizes, and masses have been determined by carefully watching the planets dim the light of Kepler-11 while transiting or crossing in front of the star itself.

它们的存在、大小和质量已经通过仔细观察这些行星在经过或穿过开普勒11跟前时让其光芒减弱的程度得到了确定。

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Think about it, do you enjoy yourself more in front of your computer screen, or in the presence of loved ones?

好好寻思寻思，你觉得是待在电脑屏幕前好呢？ 还是和你喜欢的人待在一起好？

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Dinner with kids at the table doesn't count as real presence. Sitting on the couch while you both have laptops running in front of you doesn't count either.

与孩子在饭桌前吃晚饭不能算作真正的共处，你们一起坐在沙发上使用着笔记本电脑也不算真正的共处。

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"As 1080p becomes the standard for high-definition content, Sharp has developed an affordable Full HD 1080p front projector, reinstating Sharp's strong presence in the front projection market, " said Bruce Tripido, associate vice president, marketing, Entertainment Products Division, Sharp.

ENGADGET: Sharp shows off the XV-Z15000 1080p projector

Nash, still looking for his first goal of the series, was more of a presence in front.

WSJ: Rangers' Lundqvist shuts out Caps to force Game 7

Nash was more of a presence in front, making more drives to the net in an effort to create more traffic in front of Holtby.

WSJ: Lundqvist, Brassard keep Rangers alive vs. Caps