He recovered with astonishing speed.他以惊人的速度康复了。

The results were astonishing.结果令人惊讶。

a place of astonishing beauty美得令人惊叹的地方

I find it astonishing that …令我惊讶的是……

I find it astonishing that security was so lax.安全保护如此松懈, 令我震惊。