短语
中文翻译：对
同义词：
['surprise', 'be astonished by']
例句：
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1.I was surprised at the unexpected turn of events.
我对于意外的事件感到惊讶。
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2. She was surprised at the sudden appearance of a stranger.
她对于突然出现的陌生人感到惊讶。
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3. We were all surprised at the sudden announcement of the new policy.
我们对于突然宣布的新政策感到惊讶。