Northgate planned to inaugurate（开始、举行...就职典礼）/i'nɒ:gjureit/ a facial surveillance（监视、监督）/sә:'veilәns/ system and deploy（展开、配置）/di'plɒi/ it at every entrance. During a fortnight of testing（在为期两周的测试中）/ˈdʊrɪŋ ə ˈfɔrtˌnaɪt əv ˈtɛstɪŋ/, its cameras could amass（积聚、堆积）/ә'mæs/ anonymous（匿名的；不具名的）/əˈnɑnəməs/ movement data, discern（辨别、看清楚）/di'zә:n/ a face in a blink（转眼间；极快地）/ɪn ə blɪŋk/, and alert guards when a score crossed a threshold（门槛、入口）/'θreʃәuld/. Yet a slight camera tilt（倾斜、倾向）/tilt/ sent the model astray（使模型误入歧途）/sɛnt ðə ˈmɑdəl əˈstreɪ/. Its opaque（不透明的、不传热的）/әu'peik/ design could distort（歪区、曲解）/dis'tɒ:t/ ordinary differences and reproduce an inherent（固有的、生来的）/in'hiәrәnt/ stereotype（铅版、陈规）/'stiәriәtaip/: feminine（女性的、阴性的）/'feminin/ faces received more false warnings than masculine（阳性、男性）/'mæskjulin/ ones. It even inferred that shoppers（购物者）/'ʃɒpә/ who paused at written（书面的、写成文字的）/'ritn/ signs were illiterate（文盲）/i'litәrәt/. Data scientist Priya warned that speed alone was not conducive（有益于...的、有助于...的）/kәn'dju:siv/ to justice.

Mei entered on an errand（任务、差使）/'erәnd/ to buy stationery（文具、信纸）/'steiʃәnәri/, a velvet（天鹅绒）/'velvit/ ribbon, poultry（家禽）/'pәultri/, and mint（薄荷、造币厂）/mint/ tea. A sensor（检测器）/'sensә/ seemed to sniff（以鼻吸气、嗅）/snif/ danger and flagged her as a thief. A guard began to harass（使困扰、使烦恼）/'hærәs/ her and tried to shove（推、挤）/ʃʌv/ her toward an office. Mei said, “You cannot infringe（破坏、侵犯）/in'frindʒ/ my rights because a cunning（狡猾的、巧妙的）/'kʌniŋ/ program（语境补充词）/ˈproʊˌgræm/ contrived（发明、设计）/kәn'traiv/ a story.” Compliance（柔顺、顺应）/kәm'plaiәns/ officer Daniel answered, “We must safeguard（保卫、保护）/'seifgɑ:d/ the footage（英尺长度、英板尺）/'futidʒ/, but I will stop any search until we verify the alert（直到核实警报）/ənˈtɪl wi ˈvɛrəˌfaɪ ðə əˈlərt/.”

Priya traced the error to training pictures from a military archive: artillery（火炮、炮兵）/ɑ:'tilәri/, a cannon（大炮、加农炮）/'kænәn/, a trench（渠、沟渠）/trentʃ/, and people darting（飞镖、投射）/dɑ:t/ toward a refuge（避难所、安全地带）/'refju:dʒ/ after a massacre（大屠杀、残杀）/'mæsәkә/. Other labels covered a cocktail（鸡尾酒、开味品）/'kɒkteil/ glass, a perfume bottle, and a bird's flap（飘、摆动）/flæp/. As compressed images began to crumble（(使)粉碎、(使)成为碎屑）/'krʌmbl/, shadows could rattle（格格声、拨浪鼓）/'rætl/ the classifier（语境补充词）/classifier/ and a trickle（滴、细细地流）/'trikl/ of weak signals became（语境补充词）/bɪˈkeɪm/ a confident accusation（控告、指控）/ækju:'zeiʃәn/. Priya said, “If we cannot explain the match, we should defer action to a human reviewer（把行动推迟至人工复核）/dɪˈfər ˈækʃən tɪ ə ˈjumən rivˈjuər/.” Mei replied, “Then delete my record and tell me how I can appeal.”

A manager wanted to censor（检查员）/'sensә/ the incident report, forfeit（没收物、罚金）/'fɒ:fit/ Mei's complaint（诉苦、抱怨）/kәm'pleint/, and terminate（终止）/'tә:mineit/ the pilot quietly. Daniel called that proposal arrogant（自大的、傲慢的）/'ærәɡәnt/ and likely to escalate public anger（可能激化公众愤怒）/ˈlaɪkli tɪ ˈɛskəˌleɪt ˈpəblɪk ˈæŋgər/. He would not let a pathetic（悲哀的、可怜的）/pә'θetik/ excuse mar（损毁、损伤）/mɑ:/ the audit. He issued a formal reproach（责备、耻辱）/ri'prәutʃ/ and required the team to compare error rates by age and appearance. The store would review every alert before acting, and no employee（语境补充词）/ɪmˈplɔɪi/ could treat a machine score as proof.

Northgate chose a safer transition（转变、转换）/træn'ziʃәn/ instead of a silent launch（而不是悄然上线）/ˌɪnˈstɛd əv ə ˈsaɪlənt lɔnʧ/. It erased Mei's data, apologized, and offered an independent appeal channel. Priya redesigned（修订的、重建的）/ˌri:diˈzaind/ the threshold test to endow（捐赠、捐助）/in'dau/ reviewers（评论者、书评作者）/ri'vju:ә(r)/ with context rather than authority without evidence（而非无证据的权力）/ˈrəðər ðən əˈθɔrəti wɪˈθaʊt ˈɛvədəns/. Training would impart（给予、传授）/im'pɑ:t/ a simple rule: pause, ask, and document. Daniel would fortify（设要塞于、加强）/'fɒ:tifai/ access controls and publish monthly error figures（公布每月错误数据）/ˈpəblɪʃ ˈmənθli ˈɛrər ˈfɪgjərz/. The system could flag an event, but only a trained person could decide what it meant（mean的过去式和过去分词）/ment/. That boundary protected customers while allowing careful research to continue（让审慎研究得以继续）/əˈlaʊɪŋ ˈkɛrfəl ˈrisərʧ tɪ kənˈtɪnju/.