Ozone is key species in atmospheric chemistry.

臭氧是大气化学中的核心物种.

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Qingyan key species, such as pills, Shu Yan brain, and so on a larger market potential.

重点品种如清咽滴丸 、 舒脑欣等市场潜力较大.

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The extinction of key species could have cascading effects throughout the food web.

关键物种的灭绝可能通过食物链产生级联效应.

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So, if you lose a key species, you might cause a whole flood of other extinctions.

所以, 如果失去了一种关键物种, 那么有可能导致一连串其他物种的灭绝.

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