The forward movement, the melting at the base of the glacier where it meets the ocean, and waves and tidalaction cause blocks of ice to break off and float out to sea.
冰川的向前移动，其底部与海洋接触处的融化，还有波浪和潮汐运动，导致冰块断裂，漂浮到海上。
2
The mosquito then spreads malaria, a disease that kills between one and two million people a year without any help from massive tidalaction.
在没有任何潮汐作用的帮助下，蚊子依靠传播疟疾每年杀死近两百万人。
3
Without the Moon, the many forms of life in tidal pools would die and the cleansing action of washing tides would cease.