against the sun

基本解释

Hair insulates animals against the sun by day as well as against the cold by night.
毛发使得动物可以在白天抵挡阳光，在夜晚抵挡严寒。
Although very hot, prominences typically appear dark when viewed against the Sun, since they are slightly cooler than the surface.
虽然很热，日珥典型表现是在太阳的衬托下显得较暗，因为它们比太阳表面稍冷一些。
Between 400 and 600 grams, it has no further effect, but when it exceeds 600 grams, it acts as a shield against the sun, and slows down melting.
每平方米在400克至600克之间时，不再有进一步的影响；但是当每平方米超过600克时，覆层就起到遮挡阳光的作用，从而减缓融化的速度。

Smoke is seen rising for several seconds from the gondola, silhouetted against the risen sun.
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They need to guard against the wind, sun, and lack of water among other forces.
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