Experts fear the drought could trigger a breakdown of the area's entire eco-system.
专家担心干旱会使这个地区整个生态系统受到破坏。
The sugar would trigger a patient "s immune system into launching an immediate attack."
正是这种糖引发病人的免疫系统立即产生免疫排异反应。
The sugar would trigger a patient "s immune system into launching an immediate attack."
正是这种糖引发病人的免疫系统立即产生免疫排异反应。
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