However, even after an extended snooze, participants still experienced lapses of attention and delayed reaction times.

然而，即便如此，受试者变得无法集中注意力，且反应时间延长。

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While the reaction is being investigated, the transfusion is delayed.

患者在发热反应观察期间应暂停输血。

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A critical incident is any incident so unusually stressful to an individual as to cause an immediate or delayed emotional reaction that sur - passes available coping mechanisms.

危机是指任何给个体带来超常压力，从而导致超出人体应对机制的即时或延后情绪发生的事件。

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For some infants, a milk allergy can't be missed - as soon as the baby has infant formula he develops hives and swelling, but for others the reaction is delayed and causes chronic symptoms.

BBC: Children with allergies 'being let down'

The rising hostility seems a delayed reaction to a slow economic recovery and high unemployment.

WSJ: Americans Sour on Trade

They also faulted Homeland Security Secretary Michael Chertoff for a delayed reaction.

NPR: White House Unveils Disaster-Response Measures