Resource endowment — the natural occurrence of resource in the earth's crust and atmosphere.

资源自生——在地球地表和大气层中自然出现的资源。

youdao

At some point later, through natural occurrence or human intervention, that tree became horizontal.

稍晚的时间，因为自然过程或者人为干涉，树倒了。

youdao

The natural occurrence of cracks and loss of soft film smallpox is unlikely, it was impossible.

软膜天花天然发生裂缝和脱落可能性不大，简直不可能。

youdao

The EAW said the heat-related deaths were a natural occurrence, not uncommon, which started in Mid May.

BBC: Cockle deaths blamed on weather

The mutation is a natural occurrence, as is the reaction to the drug.

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Conservative lawmakers will acknowledge that global temperatures are rising but say that such a phenomenon is a natural occurrence, not man-made.

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