During the spring, carbon dioxide changes from a solid to a gas with enough force to trigger small avalanches.

在春季，二氧化碳从固体升华为气体的过程中有足够的能力引发小型雪崩。

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Spring on Mars sees plumes of carbon dioxide vaporizing from solid blocks of dry ice as they warm up in the sunlight.

每年春季，火星表面的干冰(固体二氧化碳)在阳光照射下，会由固态升华为气态。

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Spring has sprung on Mars, bring with itthe disappearance of carbon dioxide ice (dry ice) that covers the northpolar sand dunes.

春天在火星上跃动，覆盖在北极沙丘上的二氧化碳干冰消失了。

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The seasonal increase results from tons of carbon dioxide, which had been frozen into a southern winter ice cap, returning into the atmosphere as southern spring turns to summer.

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