口头交流速度快但持续时间短。

Oral communication is fast-moving and impermanent.

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此外，在最近的一项研究中，巢穴上游和巢穴入口处的水流速度，上游朝向东南和朝向其他方向的巢穴相似。

Moreover, in a recent study, current speeds upstream of the nest and at the nest entrance were similar for nests upstream facing southeast and those facing in other directions.

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当冰川和海脊分开，冰流速度就大大加快。

When the glacier became detached from the ridge, the ice flow was able to accelerate significantly.

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