但在北美的这里，它面临着之前从未见过生物的竞争。
But here in North America, it has competition from creatures it never encountered before.
大卫·爱登堡：作为生存的多面手，这些生物表现不错，但它们大多无法再竞争中立足。
DA: They were just as good, but as generalists, most were ousted from the competition.
这种作物还将要与其他的生物燃料作物相竞争。
与食物生产竞争较间接的新的生物燃料使得二氧化碳的排放进一步减少。
New biofuels that compete less directly with food production would cut carbon emissions further.
在人类早期，人类与其他生物的竞争一定是必不可少的。
In man's early days, competition with other creatures must have been critical.
但是人反对人的竞争不是象¡生物学中所想象的那种简单过程。
Butt the competition of man against man is not the simple process envisioned in biology.
但是，人与人的竞争并不像生物生物学中想像的那样是一个简单过程。
But the competition of man against man is not the simple process envisioned in biology.
但是人反对人的竞争不是象生物学中所想象的那种简单过程。
But the competition of man against man is not the simple process envisioned in biology.
在人类早期，同其他生物竞争必不可少。
In man's early days, competition with other creatures must have been critical.
但是，人与人的竞争并不像生物学中想像的那样是一个简单过程。
But the competition of man against man is not the simple process envisioned in biology.
但是，人与人的竞争并不像生物学中想像的那样是一个简单过程。
But the competition of man against man is not the simple process envisioned in biology.
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