At the start of a cross-subject（语境补充词）/cross-subject/ challenge, Mina's team received a real case rather than a textbook（教科书）/'tekstbuk/ exercise. The opening evidence connected operation（手术；运行）/ˌɑpərˈeɪʃən/, opponent（敌对的、反对的）/ә'pәunәnt/, optimistic（乐观的、乐观主义的）/.ɒpti'mistik/, orbit（轨道、常轨）/'ɒ:bit/, ordinary（平常的人(或事)）/'ɒ:dinәri/, organ（风琴、器官）/'ɒ:gәn/, organic（器官的、有机的）/ɒ:'gænik/, origin（起源、起因）/'ɒridʒin/, original（原始的；最初的）/ərˈɪʤənəl/, otherwise（否则）/ˈəðərˌwaɪz/, ought to（应该）/ɔt tɪ/, outgoing（喜欢外出的、即将离职的）/'autgәuiŋ/, outline（大纲、轮廓）/'autlain/, and outstanding（杰出的、突出的）/.aut'stændiŋ/. The links looked unusual, but each detail came from a witness, label, form, or measurement（尺寸、度量）/'meʒәdmәnt/ in the case file. The team has already reviewed the complete plan.

A second folder added overcome（战胜、克服）/.әuvә'kʌm/, overseas（在海外、在国外）/'әuvә'si:z/, owe（亏欠、负...债）/әu/, oxygen（氧）/'ɒksәdʒәn/, p.m（下午）/p.m/, pace（速度、步调）/peis/, pack（包裹、一伙）/pæk/, pan（平锅、浅盘）/pæn/, panic（恐慌、惊慌）/'pænik/, parcel（包裹、部分）/'pɑ:sl/, partner（伙伴）/ˈpɑːtnə/, passion（激情、酷爱）/'pæʃәn/, passive（消极的、被动的）/'pæsiv/, and patent（专利权、许可证）/'pætnt. 'peitnt/. Some entries described people and places; others recorded objects, actions, or changing conditions. The students sorted each clue by time and source instead of forcing an early answer. The final choice was explained to everyone at the meeting.

The hardest set included path（小路；路径）/pɑːθ/, patience（耐性、忍耐）/'peiʃәns/, pattern（模式；规律）/ˈpætərn/, peak（山峰、巅）/pi:k/, pepper（胡椒粉、胡椒）/'pepә/, per（每；百分比表达成分）/pə/, perceive（感觉、认知）/pә'si:v/, permanent（永久的、不变的）/'pә:mәnәnt/, personality（个性、人格）/.pә:sә'næliti/, persuade（劝、使相信）/pә'sweid/, pessimistic（悲观的、厌世的）/.pesi'mistik/, phase（时期、局面）/feiz/, philosophy（哲学、人生观）/fi'lɒsәfi/, and photographer（摄影师、摄影者）/fә'tɔ^rәfә/. Mina checked spelling and context while a partner marked facts that could be tested. Mina, who led（lead的过去式和过去分词）/led/ the discussion（讨论）/dɪˈskʌʃn/, asked for clear evidence. Then the supervisor（管理者、监督者）/.sju:pә'vaizә/ said, “Do not hide an awkward clue merely because it weakens（削弱、减弱）/'wi:kәn/ your first idea.”

The last working board brought together phrase（惯用语、词组）/freiz/, physician（主治医师）/fi'ziʃәn/, piano（钢琴）/piˈænəʊ/, pill（药丸、弹丸）/pil/, pipe（管、导管）/paip/, plain（朴素的；平原）/pleɪn/, plastic（塑料的）/ˈplæstɪk/, plate（盘子）/pleɪts/, pleasant（令人愉快的）/ˈplɛzənt/, plot（小块土地、地区图）/plɒt/, plug（塞子、栓）/plʌg/, plus（正的、附加的）/plʌs/, poet（诗人）/'pәuit/, and poetry（诗、韵文）/'pәuitri/. The group compared the four boards, removed repeated claims, and wrote（写下）/roʊt/ a short reason beside every decision（决定）/dɪˈsɪʒn/. If the first method fails, we can try another one. That rule helped them correct two mistakes without blaming a teammate（队友）/'ti:mmeit/.

The group hoped to raise awareness of（提高对……的认识）/reɪz əˈwɛrnəs əv/ choices that have an impact on（对……有影响）/hæv ən ˌɪmˈpækt ɔn/ neighbours. The hall would be home to（是……的所在地）/bi hoʊm tɪ/ an open display. Residents in favour of（支持；赞成）/ɪn ˈfeɪvər əv/ the plan spoke on behalf of（代表）/ɔn bɪˈhæf əv/ their streets and answered questions in public（公开地；在公共场合）/ɪn ˈpəblɪk/. They asked what all sides have in common（有共同之处）/hæv ɪn ˈkɑmən/; as a result（因此）/ɛz ə rɪˈzəlt/, the argument（语境补充词）/ˈɑrgjəmənt/ became（变得）/bɪˈkeɪm/ a practical discussion. The completed record told（告诉）/toʊld/ a clearer story than the first draft. It did not pretend that every clue was equally important; it showed how disciplined reading, calm cooperation（合作、协力）/kәu.ɒpә'reiʃәn/, and a checkable（语境补充词）/checkable/ decision could turn a crowded case into useful（有用的）/ˈjuːsfəl/ action.