Security assessment is largely AD hoc today due to its inherent complexity.

当下的平安评价因为其内涵的复杂性绝大大都都是特地定制的。

youdao

The largely ad-supported free service likely will update ads and other graphics elements.

CNN: Facebook to announce new look for News Feed

New York City startup Image Space Media is one of a handful of companies working to monetize the last largely ad-free square inches on the web: images.

FORBES: Ex-AOLer Joins Startup That Wants To Put Ads In Images All Over The Internet

The BRICS as a group is largely an ad-hoc one, but the individual nations are increasingly aware of their potential to emerge as a new force in world affairs thanks to their strong economies and combined population.

FORBES: BRICS Summit 2011: Why Americans Shouldn't Fear this New "Superpower"