1. At that moment, I was so dumfounded that my only reaction was to slam the door and rush out.
    那时，我已出离惊讶和恼怒，我唯一的反映就是摔门而去。

2. My father was utterly dumfounded and helpless.
    我的父亲已经吓得发呆，一筹莫展。

3. I am dumfounded because of rage.
    我气得都说不出话来了。

4. Then the two old gentlemen shouted with laughter, but I was dumfounded, just petrified, as you may say.
    那两位先生哈哈大笑，我却不知所措，简直是傻了。

5. dumfounded的近义词

5. The owner was dumfounded but willingly sold everything.
    面包店的老板惊讶得说部出话，但仍然很高兴把所有的东西都卖给他。

6. Dumfounded, to fill with astonishment and perplexity; confound.
    目瞪口呆充满惊讶与不解，迷惑。