副词短语
中文翻译：严肃地
同义词：
['seriously', 'seriously speaking例句：1. He said it in all seriousness.（他严肃地说。）']
例句：
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1. He said it in all seriousness.
他严肃地说。
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2. She was in all seriousness when she told me the news.
她严肃地告诉我这个消息。
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3. We should always be in all seriousness when we are making decisions.
我们在做决定时应该总是严肃的。