在他所有的成就中，最伟大的是他在亚马逊河游泳。

Of all his achievements, the greatest is his Amazon River swim.

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岸上所有的救生员要齐心协力，防止孩子们单独在河里游泳。

All the lifeguards on the bank should be required to pull together to stop kids swimming alone in the river.

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该项目一个主要的挑战是他们在水平面上被现有的长游泳池隔离，垂直上他们起居室的地板有3米的水平落差。

One major challenge is their being segregated horizontally by the existing long swimming pool, and vertically by a 3m level-change between their living-room floors.

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