blow “（风）吹，刮”，blow sb away表示“给某人留下深刻印象，真实含义是让某人感到惊艳，让某人眼前一亮”。

【例句】
He was so blown away by the beauty of it.
他也被美景深深吸引了。

You come up with something，that blows Callaghan away. You're in.
你如果能想出一个让卡拉汉眼前一亮的东西，就会被录取。《超能陆战队》。