amorphous ice

例句：

1. 1. Theamorphous ice on the lake iscrystal clear.
   湖上的无定形冰晶莹剔透。
2. 2. The scientist used amorphous ice to study the properties of water.
   科学家用无定形冰来研究水的物理性质。
3. 3. During the winter, theamorphous ice formed on the groundbecomes solid and hardens.
   冬天，地面形成的无定形冰变硬并结冰。