He could not help feeling surprised, "it is strange that I don't lean against the reeds or shake them. Besides there wasn't a bit of wind at this moment."

他不禁感到十分疑惑：“奇怪，我并没有靠在芦苇上摇晃它，这会儿也没有一丝风，芦花怎么会飞起来的呢？”

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He was surprised at the strength of his own feeling.

他对自己感情的强烈程度感到吃惊。

《柯林斯英汉双解大词典》

"It tastes nice today," said Mary, feeling a little surprised herself.

“今天它味道不错。”玛丽说，她自己也感到有点惊讶。

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Yet as the hour of the escape drew nearer, Shin surprised himself by not feeling afraid.

WSJ: Escape From a North Korean Prison

Dr. Mann was looking mainly at the drug's safety, but he was surprised when patients started feeling less fatigued and more energetic after a single dose.

FORBES: Chemical Chameleon

So he was surprised four years ago when he started feeling awfully tired in the afternoons.

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