The second image is close to what is called a underpainting.

第二个图像是贴近被称为打底。

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The second image in Figure 4 has become the first image in Figure 6.

图 4 中的第二个图像是 图 6 中的第一个图像。

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The second image, captured by a BBC cameraman, was the most poignant of all.

第二幅画面是英国广播公司（BBC）的一位摄影记者捕捉到的。

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Yeats sees the Second Coming as an image, as a myth, an idea, a metaphor, a certain stylistic arrangement of experience.

叶芝把第二次降临看成一个意向，一个神话，一个意识，一个比喻，一种诗意的安排和感受。

耶鲁公开课 - 现代诗歌课程节选

This refraction eliminates both the red end of the spectrum (red light is not bent enough by the air layer to form part of the second image) and the blue frequencies (which are scattered away: this selective scattering is why the sky is blue).

ECONOMIST: In a flash

When looking at the thumbnail grid of images that appear beside one large image, select a bunch of photos at once by holding one finger on the first image in that group and a second finger on the last image.

WSJ: The Digital Solution: Letting Your Fingers Do the Photo Editing

The flash itself is actually a second image of the sun, caused by refraction of its light through the layer of air closest to the sea.

ECONOMIST: In a flash