refreeze

The sun is heating the newly open water, so it will take longer to refreeze this winter, and the resulting thinner ice will melt more easily next summer.

太阳给无冰水面不断加热，因此，今年冬天这些冰层重新冻结将会耗时更久，而且产生的薄薄的冰层在下一年夏天融化时更快。