During a school-to-life（语境补充词）/school-to-life/ research task, Leo's group received a case with records from several years and places. The first evidence board connected statistics（统计学、统计资料）/stә'tistiks/, shopping（买东西、购物）/'ʃɒpiŋ/, wipe（擦、揩）/waip/, spokesman（发言人、代言者）/'spәuksmәn/, latter（后者的、较后的）/'lætә/, slave（奴隶、从动装置）/sleiv/, terror（恐怖、可怕的人）/'terә/, revolution（革命、大变革）/.revә'lu:ʃәn/, pause（暂停、中止）/pɒ:z/, bench（长椅子）/bentʃ/, aircraft（航空器、飞机）/'єәkræft/, attractive（吸引人的、有魅力的）/ә'træktiv/, partly（部分地、在一定程度上）/'pɑ:tli/, and counter（计算器、计算者）/'kauntә/. Each item had a date, source, or witness, so the students could check why it mattered. The team has already reviewed the complete plan.
A second folder added possess（持有、占有）/pә'zes/, tire（轮胎、头饰）/taiә/, shortly（不久、简短）/'ʃɒ:tli/, confident（有信心的、有把握的）/'kɒnfidәnt/, tongue（舌头；语言）/təŋ/, properly（适当地、相当地）/'prɒpәli/, fade（淡入、淡出）/feid/, funeral（葬礼、出殡）/'fju:nәrәl/, squeeze（紧握、挤）/skwi:z/, mask（面具、假面具）/mæsk/, stable（马房、牛棚）/'steibl/, split（劈开、裂片）/split/, violate（违犯、亵渎）/'vaiәleit/, and steady（使稳定、使坚定）/'stedi/. The entries did not all support the same explanation. The group separated direct facts from comments, compared the order of events, and marked information that still needed confirmation（证实、证明）/.kɒnfә'meiʃәn/. The final choice was explained to everyone at the meeting.
The most difficult board included distinction（区别）/dis'tiŋkʃәn/, significance（重要性、意义）/sig'nifikәns/, storage（存储器、储藏）/'stɒ:ridʒ/, flee（逃避、逃跑）/fli:/, distribute（分配、散布）/di'stribju:t/, evolution（进化、发展）/.i:vә'lu:ʃәn/, framework（结构、骨架）/'freimwә:k/, gesture（手势；姿态）/ˈʤɛsʧər/, divorce（离婚）/di'vɒ:s/, athletic（运动的）/æθ'letik/, slight（轻视、忽略）/slait/, math（数学）/mæθ/, celebration（庆祝、庆典）/.seli'breiʃәn/, and pile（堆、大堆）/pail/. Some details looked familiar but carried a different meaning in this case. Mina, who led（lead的过去式和过去分词）/led/ the discussion, asked for clear evidence. The supervisor（管理者、监督者）/.sju:pә'vaizә/ replied, “A useful answer must explain the awkward clue as well as the easy one.”
The final set brought together besides（此外；除……之外）/ˌbiˈsaɪdz/, wealthy（富有的、丰裕的）/'welθi/, meter（米、公尺）/'mi:tә/, admission（准许进入、入场费）/әd'miʃәn/, hunter（猎人、猎犬）/'hʌntә/, educate（教育、培养）/'edjukeit/, painful（痛苦的、困难的）/'peinful/, rid（免除、以...清除）/rid/, reservation（保留、预定）/.rezә'veiʃәn/, resemble（相似、类似）/ri'zembl/, examination（考试；检查）/ɪgˌzæməˈneɪʃən/, controversial（争论的、论争的）/.kɒntrә'vә:ʃәl/, and humor（幽默、诙谐）/'hju:mә/. The students checked every label, removed two repeated claims, and wrote（写下）/roʊt/ a reason beside each change. If the first method fails, we can try another one. This rule let them correct the record without hiding uncertainty（不确定、不可靠）/.ʌn'sә:tnti/ or blaming a teammate（队友）/'ti:mmeit/.
They planned to check in（办理登记手续）/ʧɛk ɪn/, check out（办理退房；结账离开）/ʧɛk aʊt/, and set off（出发）/sɛt ɔf/ at safe times. Nobody would go on board（在交通工具上）/ɔn bɔrd/ without checking the notice in advance（提前）/ɪn ədˈvæns/. In case of（万一；如果发生）/ɪn keɪs əv/ trouble, one adult would be responsible for（对……负责）/bi riˈspɑnsəbəl fər/ contact while the student could apply for（申请）/əˈplaɪ fər/ official help. The finished report turned a crowded collection into a clear decision. It showed which evidence was strong, which detail needed further checking, and what action should happen next. The group could defend its result because every important word appeared in a real, checkable（语境补充词）/checkable/ context.