It's one of the only compounds, there's only I think three, where the density actually goes down when it freezes.

它是我见过的，唯一一个，在降温时密度下降的化合物。

麻省理工公开课 - 固态化学导论课程节选

Think of anything else with the density goes down when it freezes, and think about where we would be if that wasn't the case.

想想有没有其他的物质,在降温时密度会变大，再想想如果不是这种情况,我们将会怎么样。

麻省理工公开课 - 固态化学导论课程节选

The chateau was so big that when it freezes, they were trying to get to the bathroom and most of them never made it and peed on these long corridors that some of you have seen.

那城堡太大了,以至于到了冬天结冰的时候,那些贵族们连想去卫生间都去不了,只能在长长的走廊里方便,如你们中有些人见过的那样

耶鲁公开课 - 欧洲文明课程节选