It is the most authorized theory in the study field of curriculum exploit and the practical model with the most extensive use in the practice of education and teaching.

它是课程开发研究领域最具权威性的理论形态，也是教育教学实践领域中运用最为广泛的实践模式。

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Most companies make use of extensive outsourcing and even crowdsourcing, they use consultants, experts, agencies and, increasingly, tools like Mechanical Turk.

FORBES: How To Cut Consulting Costs by 90%: And Keep Your Talent Happy!

As for the Olympics, Links of London won the rights to use the logo and therefore has the most extensive collection of Olympic jewelry available.

WSJ: Winning British Gold for the Olympics

The 787, Boeing's newest and most technologically-advanced plane, is the first airliner to make extensive use of lithium-ion batteries.

NPR: NTSB Probes Safety Testing Of Boeing 787 Batteries