It is as general as a join point, safer than advice (because the context is more hidden), and as reusable as Command.

它和连接点一样通用，比通知更安全(因为上下文更加隐蔽)，并且和Command一样可以重用。

youdao

Last week, TripAdvisor, a Newton-based online travel community, posted a poll in which 34 percent of more than 5, 000 respondents reported uncovering more hidden fees in the past year.

上周，位于牛顿市的在线旅游社区网TripAdvisor开展了一次民意调查，在5000多名受访者中，34%表示去年其发现了隐性收费增多。

youdao

Moreover, with occupancies and revenues tumbling, hoteliers are moving their inventory like chess pieces — a Web special here, a last-minute sale there and more hidden discounts via the opaque sites.

此外，随着入住率和收益的下降，酒店经营者正像走棋一样“摆布”自己的库存——在这里提供网站特价、在那里推出最后时刻推销，以及通过模糊定价网站提供更多的隐藏折扣。

youdao

There are about forty Martian meteorites worldwide although there may be more hidden in collections around the world.

VOA: special.2010.07.28

"Well,the more I thought about it, the more I realized the police could not find the letter because D'Arcy had not hidden it at all.

VOA: special.2009.12.26

But he says December's incident in which a Nigerian man boarded a jet headed for Detroit with explosives hidden in his underwear shows that more work lies ahead.

VOA: standard.2010.06.05

The more hidden the costs and less accountable the decisions, the worse the outcomes are likely to be.

FORBES: The Economy Needs A 'Deregulatory Stimulus'

Sadly, dollar debasement has masked a more hidden truth about the health of ostensibly stronger currencies--and the global economy.

FORBES: Magazine Article

This will cut the alcohol burn and open up some of the more hidden flavors in the spirit you are tasting.

FORBES: How To Taste Spirits