The first proposals for describing the boundary layer marking the beginning of the Anthropocene are already being discussed.

描述边界层的最初的提议标志着人类世的争论的开始。

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It would have caused thousands of impacts, generating global fires and depositing nanodiamonds at the 'extinction boundary' marking the point in time when many species died out.

而这一个小时的雹灾却造成了成千上万次的撞击，产生全球性的火灾并且在“灭绝的边界”(指陨石或陨石坑)沉积了很多“纳米钻石”，造成了当时很多物种的灭绝。

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Lodge Pole Creek ran parallel with the road, marking the boundary between the territories of Wyoming and Colorado.

洛基·布尔河和铁道平行，顺着怀俄明和科罗拉多两州笔直的交界线向前奔流。

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The path leads past a dry-stone wall, marking the boundary of a nature reservation.

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Stones marking the boundary of Crown lands in Fort Augustus from the same period of time have also been identified by historians.

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