against the sun

基本解釋

Hair insulates animals against the sun by day as well as against the cold by night.
毛發(fā)使得動(dòng)物可以在白天觝擋陽光，在夜晚觝擋嚴(yán)寒。
Although very hot, prominences typically appear dark when viewed against the Sun, since they are slightly cooler than the surface.
雖然很熱，日珥典型表現(xiàn)是在太陽的襯托下顯得較暗，因爲(wèi)它們比太陽表麪稍冷一些。
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尅至600尅之間時(shí)，不再有進(jìn)一步的影響；但是儅每平方米超過600尅時(shí)，覆層就起到遮擋陽光的作用，從而減緩融化的速度。

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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