The other day as we went up the deep canyon which lay in shadow with the arid mountains on both sides, it was full of birds, insects, and the quiet activity of small animals.
那天当我们爬上两边是干旱山脉的位于阴影中的深深峡谷时，到处都是鸟儿、昆虫以及小动物们安静的活动。
For oblique incidence, considerable amplification is observed in front of the canyon, and a prominent shadow zone is realized behind the canyon.
对于斜入射角，在峡谷的前方，会观察到很大的位移放大，而在峡谷的背面，会有很明显的凹陷带。
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