一束阳光突破了浓密的云层。
A ___ray of sunshine broke through the dense clouds.
一缕阳光从云层缝隙中照射下来。
A ___ray of sunshine shone through a gap in the clouds.
光线从空气进入水中时发生了弯曲。
The ___ray of light bent as it passed from air to water.
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