但反复长时间暴露在这些过敏原中，你便超越了那个界限，身体便会有所反应。
with repeated exposure over time, you cross that threshold, and your body reacts.
但这次的版本第一次反应了共和党的大量投入，因为要在参议院达到60票多数的界限以形成法令，共和党的支持是必须的。
This version, however, is the first to reflect substantial input from Republicans, whose support is necessary to reach the 60-vote margin needed in the Senate for the bill to become law.
对于我来说，在欺负人与捉弄人两个行为之间并没有很明显的界限，但是我知道他不是“捕猎者”，他是个直肠子，遇到什么事就反应出来。
The border between bullying and teasing is not obvious to me, but I know he's not predatory; he shoots from the hip at random things that move.
美国人对跨越种族界限的男性美感的认识存在一个更大的扭曲，那就是他们倾向于用扭曲了的标准反应种族的习惯性角色。
An even greater distortion in American perceptions of male beauty across racial lines is the tendency to assign distorted norms that reflect racial typecasting.
本文广义地讨论了滴定分析的可行性界限，并借助平衡反应进度概念导出了滴定分析可行性界限的普适判别式。
The paper widely discusses the limit of feasibility in titrimetry and has derived the general criterion formula of the limit of feasibility in titrimetry by extent of reaction at equilibrium.
结果慢性氟中毒大鼠中缝大核5 -HT神经元减少，胞质内5 -HT阳性反应颗粒减少且界限不清，显微图像分析仪定量检测神经元内5 -HT含量降低。
Results The results showed that the number of 5-HT positive neurons in nucleus raphe magnus decreased in fluorosis group with the declared 5-HT positive particles in cy…
结果慢性氟中毒大鼠中缝大核5 -HT神经元减少，胞质内5 -HT阳性反应颗粒减少且界限不清，显微图像分析仪定量检测神经元内5 -HT含量降低。
Results The results showed that the number of 5-HT positive neurons in nucleus raphe magnus decreased in fluorosis group with the declared 5-HT positive particles in cy…
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