DEET不仅会对昆虫的脑部和神经系统起作用，甚至还会使得昆虫窒息而造成神经麻痹直至死亡。
DEET also ACTS on the brains and nervous systems of insects and, in extreme cases, can cause paralysis and eventual death by asphyxiation in the insects.
当空气中的氧含量明显下降时，人会窒息甚至可能死亡。
An appreciable reduction in oxygen content will lead to disomfort and possible death.
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