"We had to be thoroughly analyzed," he said. "They saw us as a potentially catalytic force. They just had to figure out for what."
“他们要全面分析一下我们，”他说到，“他们视我们为潜在的催化力量。他们只需要弄明白为什么。”
One of the basic assumption of the simple catalytic model is that during the period of the diseases prevalence, the force of infection is a constant.
简单催化模型的一个基本适应条件是：在疾病流行期间其感染力保持恒定。
One of the basic assumption of the simple catalytic model is that during the period of the diseases prevalence, the force of infection is a constant.
简单催化模型的一个基本适应条件是：在疾病流行期间其感染力保持恒定。
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