double take

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ˌdouble ˈtake noun [countable]  do a double take SURPRISEDto look at someone or something again because you are very surprised by what you saw or heard 猛吃一惊后定神再看

Examples from the Corpus

double take• Colleagues and friends often walked past me in the hallway, then stopped and did a double take.• You'd be forgiven for doing a double take.• One of the men glanced at him, giving a double take as he realised who it was.• For me, it was an astonishing double take.

ˌdouble ˈtake nounChineseSyllable  

look someone something at Corpus or because to again you

double take
ˌdouble ˈtake noun [countable]
do a double take to look at someone or something again because you are very surprised by what you saw or heard

double takeBrE /ˌdʌbl ˈteɪk/ 🔊NAmE /ˌdʌbl ˈteɪk/ 🔊 nounif you do a double take, you wait for a moment before you react to sth that has happened, because it is very surprising 愣了一会儿才恍然大悟的反应