泄洪渠上的水流呈现出白色，估计是快速流动的关系。

Water pouring over the spillway appears white, likely resulting from its rapid flow.

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2010年7月初，堰塞湖终于通过泄洪渠开始放水。

In early July 2010, the lake finally began flowing over the spillway.

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预计泄洪渠的完成能够降低发生这种灾难性事件的风险。

Completion of the spillway was expected to reduce the risk of such a catastrophic event.

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