看到蛇时，她吓得呆住了，一动也不能动。

The sight of the snake ___petrified her, leaving her frozen in fear.

这些古老的贝壳经过数百万年已经石化，现在看起来像石头一样坚硬。

These ancient shells have been ___petrified over millions of years and now look as hard as stone.

看到蛇的瞬间，他吓得呆住了。

He was ___petrified at the sight of the snake.