The forward movement, the melting at the base of the glacier where it meets the ocean, and waves and tidal action 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。

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But the draining of one nation's gold credit base is not the only way in which the necessarily free movement of metal may upset the smooth functioning of the machine.

但是，一个国家的黄金信贷基数的枯竭，并不是必要的黄金自由流通导致机制运转失常的唯一途径。

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The movement's main base is over the border in northern Iraq, where Iraqi Kurds run their own region.

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Her political affiliation is with Winaq, an indigenous movement which has its base in the Mayan indigenous population most of whom live in poor rural areas.

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However fleet her reflexes, broadening the primary base and launching a "movement" take organization and money, two things she has proved slow to build.

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