商业高尔夫球场，利用一对组合层路基碎石和沙子。

Commercial golf courses utilize a subgrade of combined layers of gravel and sand.

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但是一旦两人开始新任、分享、完成项目，这一对组合将非常稳固和强大。

However, once they have learned to trust, share and accomplish projects with another person, this alliance will be secure and strong.

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显然，对于每个与该技术行业有关的人而言，这个功能强大的一对组合都是必备知识。

Clearly, this powerful duo are essential knowledge for everyone involved in the technology industry.

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