be taken aback [bi: ˈteɪkən əˈbæk]

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突然吓了一跳，吃惊

Jenny was taken aback by some of the portraits.其中一些肖像画使詹妮大吃一惊。
He was taken aback,but he managed to remain calm.他心里一惊，但表面上却仍神色自若。