reaction [ri'ækʃən, ri:-]

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n. ��Ӧ����Ӧ�����������ţ�������

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n. chemical reaction��response

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1. Her initial reaction was surprise.
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2. Well, you underestimated her reaction.
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3. But its allergic reaction and allergic shock reaction bring great harm to the patients.
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n.
  1. a response that reveals a person's feelings or attitude
  2. a bodily process occurring due to the effect of some foregoing stimulus or agent
  3. (chemistry) a process in which one or more substances are changed into others
  4. an idea evoked by some experience
  5. doing something in opposition to another way of doing it that you don't like
  6. extreme conservatism in political or social matters
  7. (mechanics) the equal and opposite force that is produced when any force is applied to a body

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reaction
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exothermic reaction
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dynamic reaction
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side reaction
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nuclear reaction
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