Horizon C is relatively unweathered parent material form which the mineral components of the above layers are derived.

C 水平层是相对未风化的母质土，其它层的矿物都源于此。

youdao

So for 88 days, the Sun is constantly above the horizon and surface temperatures soar to nearly 900 degrees F (482-degrees C).

所以有88天的时间太阳一直处于地平线上。表面温度上身到近900华氏度（合折482摄氏度）。

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To prevent another catastrophe like Deepwater Horizon, C-suite leaders must move rapidly to create a culture in which safety is valued as the foundation for every other dimension of performance.

FORBES

At First Horizon National Corp (FHN), a filing with the SEC revealed that on Wednesday, Director John C.

FORBES: Friday 7/27 Insider Buying Report: FHN, PM