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The bow-wow theory: In primitive times people imitated the sounds of the animal calls in the wild environment they lived and speech developed from that.

“汪汪”理论：原始时代，人们在野外模仿动物发出的叫声，语言便产生了。

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The content in the Dendrobium candidum growing under the wild environment is less than that in the manual cultivation Dendrobium candidum.

野生环境下生长的铁皮石斛比人工栽培的铁皮石斛略逊一筹。

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This too is a wild, demanding environment, a place where you feel instantly in touch with raw, pure nature.

BBC: A culinary pilgrimage along the Way of St James

It also said climbers must play a role in protecting the environment by avoiding wild bird nest sites and not slinging climbing ropes around trees.

BBC: Climbers take part at 'own risk'

Insect resistance, however, might be expected to be as much of an advantage in the rough and tumble of the wild as in the cosseted environment of the farmer's field.

ECONOMIST: GM crop plants are less weed-like than weedy