First, a free lunch doesn't necessarily mean the food is being given away or that you'll pay for it later -it could just mean someone else is picking up the TAB.

首先，免费午餐并不必然意味着那些食物可以白白送掉，或你稍后必须为其付费——它只是表明，其他人会替你付账。

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It just doesn't pay to be an enemy of the open source movement these days.

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If you jet around the globe, it just doesn't make financial sense to be forced to pay the annual dues of a community.

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It doesn't necessarily follow that a team should pay up for a player just because he's quality when they're not likely to be good, of course, but the Mets might make a special case.

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