back 还是 aback?

I was taken back by her loose talk.

I was taken aback by her loose talk.

(她大放厥词，把我吓了一大跳。)

这两个句子哪个是正确的？

答案：I was taken aback by her loose talk.

be taken aback 意为“某人吓了一大跳”。be taken back 则指“某（购买）物被拿回去退换”或比喻“某人被带回到旧时光”，如: If you don't like the shirt, it can be taken back. (如果你不喜欢这件衬衫，可以拿回去退换。)

I am taken back to my salad days whenever I hear this old song. (每当听到这首老歌，我就想起从前少不更事的日子。)