However, he warns that, although microbiological tests carried out in the field are hugely valuable, they are logistically very difficult.
然而，他警告说，尽管在实地执行微生物实验具有巨大的价值，但实际上非常困难。
However, he warns that, although microbiological tests carried out in the field are hugely valuable, they are logistically very difficult.
然而，他警告说，尽管在实地执行微生物实验具有巨大的价值，但实际上非常困难。
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