It is quite possible to be standing in waist deep water one second and have water over your head the next.

很有可能前一秒你还在齐腰深的海水中，下一秒你就在齐顶深的水中了。

youdao

The water was only waist-deep so I walked ashore.

水只有齐腰深，所以我涉水上了岸。

《牛津词典》

The water was waist-deep.

水齐腰深。

《牛津词典》

And then the three walked back to Saint Beuno's in the sifting snow, edifying each other by praying the five glorious mysteries of the Rosary on the way, and then goading the scholastics fishing the Elwy until Bill Dubberley caught a trout and fell waist deep in the river while hauling it in.

NPR: Excerpt: 'Exiles'

Part of High Street was cut off by waist-deep water and roads in and out of the town were closed.

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With a dolphin encounter, you will get an up-close and personal meeting with your new bottlenose bud via a waist-deep submerged platform.

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