Then I met someone and wham, bam, I was completely in love.

然后我遇上了一个人，嘭的一下，我就恋爱了。

《柯林斯英汉双解大词典》

I saw him yesterday and—wham!—I realized I was still in love with him.

我昨天看到他了。我猛地一下子意识到我仍然在爱着他。

《牛津词典》

I saw him yesterday and—wham!—I realized I was still in love with him.

我昨天看到他了。我猛地一下子意识到我仍然在爱着他。

《牛津词典》