你身体对压力源的不同反应取决于压力源是否是新的。如果是新的，这是急性压力，如果已经存在了相当长一段时间，这就是慢性压力。
Your body responds to stressors differently depending on whether the stressor is new - acute stress - or whether the stressor has been around for a longer time - chronic stress.
专家们相信，任何没有免疫力的人群暴露于新的流感病毒株足够长的时间都经历相似的命运。
A similar fate awaits any population exposed long enough to a new flu strain to which it has no immunity, experts believe.
鄂尔多斯盆地长4 5油组是长庆油田近年来油气勘探发现的新的含油气储层，目前主要勘探重点集中于盆地内姬塬地区。
Ordos basin oil group Chang 4 5 Changqing Oilfield discovered in recent years, new oil and gas exploration oil and gas reservoirs, currently the main exploration focus on the basin Jiyuan area.
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