Only see a shadow wave swing forever!

唯见，一水波影荡千秋！

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The diffraction effect is the phenomenon of wave propagation into shadow region.

衍射则是电波绕射传播到遮蔽区的现象。

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The existing of earthquake swarm, S wave shadow in some seismic stations and gradually uplifting of surface suggest a magma system beneath these volcanoes.

火山区存在的震群活动、部分台站观测到的S波阴影区以及地表的缓慢抬升等，指示火山区存在一个岩浆系统。

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But some that are now riding a wave of growth enthusiasm are very much in the shadow of decline.

FORBES: Why Growth Is So Hard And What To Do About It