Open source altruism is rooted in the prioritization of quick-win, modular ideas, packaged as "kits" in adoptable formats, and provided free of charge.
开源利他主义植根于快速成功和模式化思想的优化，以可接受的模式组合成一套工具，并且是免费的。
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Canned foods may be a source of BPA exposure, along with packaged foods.
The Perl documentation (usually packaged and distributed separately from the main Perl source or binary package) contains a comprehensive man page on Perl regexps.