When Thoreau wrote that line, he was thinking of the Walden Pond he knew as a boy.

写这句话时，梭罗想起孩提时代的瓦尔登湖。

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He swam down and retrieved his glasses from the muck and slime at the bottom of the pond.

他潜下水去，从池塘底部的烂泥污物中找回了眼镜。

《柯林斯英汉双解大词典》

He called his pond the Free Life Pond.

他把他的池塘起名为放生池。

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When Thoreau sits on his little stool outside his cabin at Walden Pond and he hears the train go by over the ridge, and he puts his hands over his ears he doesn't want to hear it-- he's representing something.

在瓦尔登湖的木屋外,梭罗坐在他的小凳子上,他听到火车的声音穿越桥梁,他捂住了耳朵,他一点也不想听到这个声音,他代表着某种想法

耶鲁公开课 - 美国内战与重建课程节选

When he became the face of the Broncos in 1983, a huge fish in a small sports market pond, he became the most locally scrutinized athlete in America.

FORBES: Elway is Face of Broncos Once Again

In the pond, he was all animal-thought, no words, no self, blind panic.

NEWYORKER: Tenth of December

Only when I had climbed out of the pond did he dive into it, silently, with no apparent disturbance of the water.

NEWYORKER: Wakefield