骇然

hài rán bìng qiě bù zhī suǒ cuò

骇然并且不知所措

be struck dumb and helpless

zhè ge xiāo xi shǐ wǒ shí fēn hài rán

这个消息使我十分骇然。

This news has left me absolutely speechless.

dāng tā bǎ zì jǐ suǒ zuò de shì gào su le jǐng chá shí tā men wèi zhī hài rán

当他把自己所做的事告诉了警察时，他们为之骇然。

The police were astounded when he told them what he had done.