But their mouths may be even more daunting-urchin teeth can literally chew through stone without getting dull.

但是，它们的口器可能更令人望而生畏——毫不夸张地说，海胆的牙齿可以把岩石咬碎，却永远不会变钝。

youdao

Sea urchins are perhaps best known for their armor of spines. But their mouths may be even more daunting-urchin teeth can literally chew through stone without getting dull.

也许关于海胆，人们知道得最多的是它们的棘刺盔甲。但是，它们的口器可能更令人望而生畏——毫不夸张地说，海胆的牙齿可以把岩石咬碎，却永远不会变钝。

youdao

The focused mind can Pierce through stone.

集中起来的意志，可以击穿顽石。

youdao

The sharp noise came through the thick stone walls of the house.

VOA: special.2010.03.20

Suddenly,a stone crashed through the office window.

VOA: special.2009.10.29

Rich used to laugh about that habit of hers, asking what she thought might get in, through the stone walls and elf-size windows, to menace them.

NEWYORKER: Free Radicals

Roughly 1, 200 years later, the Greeks used water dripping through holes in stone vessels to measure the passage of hours.

FORBES

While the rooms are thoroughly modern, the entrance to the property is through a long stone tunnel that remains just as it was 400 years ago.

BBC: Macau beyond the roulette wheel