Now there's a third way that octopus can transform themselves to blend in with or mimic their environment, and that's by changing their shape and size, at least their apparent size.

现在有第三种方式可以让章鱼改变自己，以融入或模仿它们所处的环境，那就是改变它们的形状和大小——至少是在表面上改变自己的大小。

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Big is dominant and in species after species, humans included, postures that enhance the posturer's apparent size cause others to treat him as if he were more powerful.

在包括人在内的所有物种里，“大”才是主宰，而如果你的身姿可以让你看起来更高大的话，那么别人也会觉得你更有力量。

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The background galaxies are about one tenth the apparent size of NGC 7331 and so lie roughly ten times farther away.

背景星系的大小大约是NGC7331表面大小的十分之一，而距离上则大约是10倍甚至更远。

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Growers like Mr. Cheek say there is also reason to be optimistic about sales this year, since there has been some good weather on key tree-buying weekends this month and an apparent fondness among 20-somethings to buy real trees, even if they are table-top size.

WSJ: Fir Real? Christmas Trees in Crisis as Americans Flock to Fakes

The head-tracking system, which was developed by the Fraunhofer Heinrich-Hertz Institute in Germany, works by calculating how far away a head is, based on its apparent size (the direction is obvious, of course).

ECONOMIST: Monitor