Even though the surface of the sea has solidified into ice, its lower strata are still open, thanks to that divine justice that puts the maximum density of salt water one degree above its freezing point.

如果海面被冰冻结凝固了，它的下层是自由通行的，因为下面有天从人愿的自然理由，那就是海水的极大密度是比冰冻时高出一度。