At the start of a cross-subject（语境补充词）/cross-subject/ challenge, Leo's team received a real case rather than a textbook（教科书）/'tekstbuk/ exercise. The opening evidence connected surround（包围、环绕）/sә'raund/, surrounding, survive（比...活得长、生存）/sә'vaiv/, suspect（被怀疑者、嫌疑犯）/sә'spekt/, suspend（悬、吊）/sә'spend/, sweat（汗、汗水）/swet/, sweep（清扫）/swiːp/, swing（摆动）/swɪŋ/, symbol（符号）/ˈsɪmblz/, sympathy（同情、赞同）/'simpәθi/, symphony（交响乐、交响曲）/'simfәni/, system（系统）/ˈsɪstəm/, tablet（平板、门牌）/'tæblit/, and tackle（工具、复滑车）/'tækl/. 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 tailor（裁缝、成衣匠）/'teilә/, tale（故事）/teɪl/, tank（槽、箱）/tæŋk/, tax（税）/tæks/, teapot（茶壶）/'ti:pɒt/, tear（泪滴、眼泪）/tiә. tєә/, technique（技巧；技术）/tɛkˈnik/, teenager（十三岁到十九岁的少年）/'ti:nidʒә/, telescope（望远镜）/'teliskәup/, temple（圣堂、庙宇）/templ/, tend（往往；照料）/tɛnd/, tension（紧张、不安）/'tenʃәn/, territory（领土、领地）/'teritәri/, and theft（盗窃行为、偷窃）/θeft/. 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 theme（主题、话题）/θi:m/, therefore（因此）/ˈðɛrˌfɔr/, thinking（思考、思想）/'θiŋkiŋ/, thorough（十分的、彻底的）/'θʌrә/, threaten（恐吓、威胁）/'θretn/, throughout（贯穿；遍及）/θruaʊt/, thunder（雷、雷声）/'θʌndә/, thus（因此）/ðəs/, tight（紧的、密封的）/tait/, tip（顶、尖端）/tip/, tissue（薄的织物、薄纱）/'tiʃu:/, title（书名）/ˈtaɪtl/, toast（吐司、烤面包）/tәust/, and tobacco（烟草、香烟）/tә'bækәu/. Leo 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 tolerate（宽容、容许）/'tɒlәreit/, tone（音调、音质）/tәun/, tough（艰难的；坚韧的）/təf/, tournament（比赛、竞赛）/'tә:nәmәnt/, towel（毛巾）/ˈtaʊəl/, track（轨道；追踪）/træk/, transform（使转换、改变）/træns'fɒ:m/, trap（圈套、陷阱）/træp/, treatment（治疗；处理）/ˈtritmənt/, trend（趋势）/trend/, trial（试验；审判）/traɪəl/, trick（诡计、欺诈）/trik/, trunk（树干、干线）/trʌŋk/, and tube（管、软管）/tju:b/. 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 team had to meet a deadline（按期完成）/mit ə ˈdɛˌdlaɪn/ and submit an application（提交申请）/səbˈmɪt ən ˌæpləˈkeɪʃən/. Members must be qualified for（有资格胜任）/bi kˈwɑləˌfaɪd fər/ their roles, be capable of（有能力做）/bi ˈkeɪpəbəl əv/ solving problems, and take responsibility for（承担……的责任）/teɪk riˌspɑnsəˈbɪləti fər/ results. They would respond to（回应）/rɪˈspɑnd tɪ/ feedback（反馈、反应）/'fi:dbæk/, take the initiative（采取主动）/teɪk ðə ˌɪˈnɪʃətɪv/, and be willing to（愿意做）/bi ˈwɪlɪŋ tɪ/ revise the plan. 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.