单词	operations-research
释义	请查阅词条：operations research
随便看	thesaurus/update thesaurus/up-in-arms thesaurus/upload thesaurus/upright thesaurus/uproarious thesaurus/upset thesaurus/upshot thesaurus/upskill thesaurus/upstanding thesaurus/upswing thesaurus/up-the-pace thesaurus/up-to-date thesaurus/up-to-the-minute thesaurus/up-to-your-ears-in-something thesaurus/up-to-your-eyeballs-in-something thesaurus/up-to-your-eyes-in-something thesaurus/up-to-your-neck-in-something thesaurus/upturn thesaurus/urchin thesaurus/urgent thesaurus/useful thesaurus/useless thesaurus/user-friendly thesaurus/usual thesaurus/usurious