一愣

tīng dào nà ge lìng rén zhèn jīng de xiāo xi shí wǒ xiān shi yī lèng hòu lái cái huǎng rán dà wù

听到那个令人震惊的消息时，我先是一愣后来才恍然大悟。

I did a double take when I heard the shocking news.