Yes, aground on soft bottom.

是的，搁浅在软底质上。

youdao

The workers had to go far below the soft bottom of the river. They had to reach rock and remove some of it in order to make a good base for towers.

工人们必须深入软河床下面，必须接触到地底的岩石并挖开它们，以便为塔构筑坚实的基底。

youdao

We explored the streams, quietly, where the turtles slid off the sunny logs and dug their way into the soft bottom; and we lay on the town wharf and fed worms to the tame bass.

我们悄悄勘查了溪流，在溪中木头上晒太阳的乌龟滑下水，一头扎到松软的水底；我们躺在镇码头上，用蚯蚓喂老实的鲈鱼。

youdao

This soft-bottom portion of the river is also called the Glendale Narrows.

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This was quite easy, because the sand at the bottom of the hole was very soft and fine and dry, like sea-sand.

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