At the Meru border, aid trucks began to converge（聚合、集中于一点）/kәn'vә:dʒ/ while guards rotated（使旋转、使转动）/'rәuteit/ through a stern（尾部、船尾）/stә:n/ inspection. Samira's convoy was beset（围绕、使苦恼）/bi'set/ by rust（锈、生锈）/rʌst/, a broken（坏掉的、打破的）/'brәukәn/ shield（盾、防卫物）/'ʃi:ld/, and an indefinite（模糊的、不确定的）/in'definit/ permit. One redundant（过多的、多余的）/ri'dʌndәnt/ page was missing from a serial（分期连载作品、连载小说）/'siәriәl/ document. Beyond the gate, Dr（语境补充词）/ˈdɑktər/. Kofi（语境补充词）/ˈkoʊfi/ said a pest（令人讨厌之物、有害之物）/pest/ had crippled（跛者、残废）/'kripl/ crops and that families crammed（塞满、填满）/kræm/ into a clinic in the midst of hunger（在饥荒之中）/ɪn ðə mɪst əv ˈhəŋgər/. A nearby canoe（独木舟、轻舟）/kә'nu:/ carried bleach（漂白、漂白剂）/bli:tʃ/, spice（香料、药料）/spais/, pumpkin（南瓜）/'pʌmpkin/, and medicine across Lake Nadi（语境补充词）/nadi/.

Officer Anton warned Samira to beware of ammunition（警惕弹药）/bɪˈwɛr əv ˌæmjəˈnɪʃən/ hidden under relief goods. A corporal（下士）/'kɒ:pәrәl/ checked each flank（侧面、侧腹）/flæŋk/ and used a tack（平头钉、大头钉）/tæk/ to mark opened crates. One blunder（大错、大失策）/'blʌndә/ could imprison（使下狱、关闭）/im'prizn/ a driver or make the whole route void（使整条路线失效）/meɪk ðə hoʊl rut vɔɪd/. Samira kept（语境补充词）/kɛpt/ a discreet（小心的、慎重的）/dis'kri:t/ manner and cordial tone（友好的语气）/ˈkɔrʤəl toʊn/, although antagonism（对立、敌对）/æn'tægәnizm/ between the two agencies made every delay feel deliberate. “Without the missing page, I cannot declare this cargo viable（能养活的、能生长发育的）/'vaiәbl/.” “Then let our envoy（外交使节、特使）/'envɒi/ verify the original with your chancellor（大臣、总理）/'tʃɑ:nsәlә/'s office.”

Dr. Kofi arrived with a limp（跛行）/limp/ after a passerby（路人；过路人）/ˈpæsərbi/ had helped him avoid grazing（吃草、放牧）/greiz/ a motorcycle（语境补充词）/ˈmoʊtərˌsaɪkəl/. His complexion（肤色、情况）/kәm'plekʃn/ looked pale, and his voice became（语境补充词）/bɪˈkeɪm/ almost hysterical（歇斯底里的、异常兴奋的）/his'terikәl/ when he explained that vaccines would degenerate（堕落的）/di'dʒenәreit/ in the heat. The clinic's refrigerator gave only a weak hum（嗡嗡声、哼声）/hʌm/. It also needed thread to stitch（一针、疼痛）/stitʃ/ wounds, ointment（软膏、油膏）/'ɒintmәnt/ for a spider（蜘蛛、设圈套者）/'spaidә/ bite, and supplies tucked（缝褶、活力）/tʌk/ inside a damaged wardrobe（衣橱、衣室）/'wɒ:drәub/. “If these vaccines expire, the infection may topple（推翻、颠覆）/'tɒpl/ our remaining defenses（语境补充词）/dɪˈfɛnsɪz/.” “Urgency（紧急、催促）/'ә:dʒәnsi/ does not erase the rule, Doctor.”

Samira did not clasp（扣子、钩）/klɑ:sp/ at an exception. With tact（得体地）/wɪθ tækt/, she proposed separating medical pallets（草铺、简陋小床）/'pælit/, scanning them, and placing them under a guard while the envoy repaired the file. Anton peeled（皮、外壳）/pi:l/ back a label and found no weapon. A customs dog sniffed a hockey（冰球、曲棍球）/'hɒki/ bag, while a snail（蜗牛、行动迟缓的人）/sneil/ crossed the tranquil（安静的）/'træŋkwil/ concrete. The odd details eased tension but did not weaken（削弱、减弱）/'wi:kәn/ control. “Release the cold boxes first, and keep every other crate sealed（保持其他箱子密封）/kip ˈɛvəri ˈəðər kreɪt sild/.” “That compromise protects the law and the patients（保护法律和病人）/prəˈtɛkts ðə lɔ ənd ðə ˈpeɪʃənz/; I accept it.”

The chancellor confirmed the envoy's copy, and the trucks crossed before the vaccines were on the verge of failure（濒临失效）/ɔn ðə vərʤ əv ˈfeɪljər/. The crossing marked the debut（初次登台、开张）/'deibju:/ of a digital permit mirror. At the border trucks began to converge before dawn. I cannot declare this cargo fully（语境补充词）/ˈfʊli/ viable. If these vaccines expire, infection may topple our defenses. She proposed scanning the pallets and repairing the file. Workers used a pump to move clean water and tucked food away from rain. Samira recorded every rotation（旋转、循环）/rәu'teiʃәn/, preventing theft（防止盗窃）/prɪˈvɛnɪŋ θɛft/ and a later slump（暴跌、垂头弯腰的姿态）/slʌmp/ in trust. She also made arms inspections routine rather than taboo（禁忌、禁止接近）/tә'bu:/. A viable solution can underlie（位于...之下、成为...的基础）/.ʌndә'lai/ strict compliance（严格合规）/strɪkt kəmˈplaɪəns/ here. The convoy's cosmopolitan（世界主义者、世界性）/,kɔzmә'pɔlitәn/ crew learned to shield people from immediate harm, preserve evidence, and correct paperwork（文书工作）/'peipәwә:k/ without pretending the void（空虚、空间）/vɒid/ never existed.