At dawn（黎明时）/æt dɔn/, Nora climbed a ladder（梯、梯状物）/'lædә/ to the new weather hut（小屋、茅舍）/hʌt/ on Raven（渡鸦、掠夺）/'reivn/ Ridge（脊、山脊）/ridʒ/. Its altitude（高度、海拔）/'æltitju:d/ was one kilometer（语境补充词）/ˈkɪləˌmitər/ above the valley（在山谷上方）/əˈbəv ðə ˈvæli/, and the road curved（曲线、弯曲）/kә:v/ along a dense（密集的、浓厚的）/dens/ slope（倾斜、斜坡）/slәup/. Dew（露珠、露水）/dju:/ shone（语境补充词）/ʃoʊn/ like a jewel（珠宝、贵重物）/'dʒu:әl/ on each metal rod（竿、笞鞭）/rɒd/. A pigeon（鸽子、易上当受骗的人）/'pidʒin/ and a dove（鸽子）/dʌv/ continued to cling（粘紧、附着）/kliŋ/ to the roof until the station began to hum（嗡嗡声、哼声）/hʌm/. Nora checked the compass bearing（举止、轴承）/'bєәriŋ/, the sphere-shaped（语境补充词）/sphere-shaped/ wind sensor（检测器）/'sensә/, and the camera lens. The gorgeous（华丽的、灿烂的）/'gɒ:dʒәs/ horizon（地平线、眼界）/hә'raizәn/ looked moderate（节制、减轻）/'mɒdәrәt/, but the screen showed considerable（相当大的；重要的）/kənˈsɪdərəbəl/ pressure change and a weird（怪异的、超自然的）/wiәd/ rise in temperature.

“The literal（逐字的、字面上的）/'litәrәl/ reading says severe hail（冰雹、致敬）/heil/ by twelve o'clock（……点钟）/əˈklɑk/. We should isolate（使隔离、使孤立）/'aisәleit/ the tunnel（隧道、地下道）/'tʌnl/ now.” “A loose stem（茎、干）/stem/ may distort（歪区、曲解）/dis'tɒ:t/ the curve. Let me retain（保持、保有）/ri'tein/ traffic while I test it.” Pavel argued that waiting until midday（正午、中午）/'middei/ could put a whole procession（队伍、连续）/prә'seʃәn/ of buses at risk. Nora replied that closing the road also had an ethic（道德规范、伦理）/'eθik/: evidence should guide a decision（指导决定）/gaɪd ə dɪˈsɪʒən/ that affected every mate（配偶、对手）/meit/ trying to reunite（(使)再联合）/.ri:ju:'nait/ with family.

They began calibration（开始校准）/bɪˈgæn ˌkæləˈbreɪʃən/. Nora used gum（树胶、橡皮）/gʌm/ to mark the old setting, then raised the sensor to elevate（举起、提拔）/'eliveit/ it above the hut. She discarded（垫牌、抛弃）/dis'kɑ:d/ a torn（tear的过去分词）/tɒ:n/ cover and used an ax（斧头）/æks/ to trim（整齐、情形）/trim/ a branch that might spur（马刺、刺激物）/spә:/ false movement. Inside, a small heater made the room feel like a living-room（客厅）/living-room/, so Pavel opened a vent（排气口、出口）/vent/ to let heat dissolve（溶解、解散）/di'zɒlv/ into the air. A model spaceship（宇宙飞船）/'speisʃip/ hung（hang的过去式和过去分词）/hʌŋ/ from the ceiling, a reminder that weather, geology（地质学、地质情况）/dʒi'ɒlәdʒi/, and the wider cosmos（宇宙、秩序）/'kɔzmɔs/ had fascinated（令人入神、使着迷）/'fæsineit/ the station's founder.

“I need more than a glimpse（一瞥、一闪）/glimps/. Do I disable（使失去能力、使残废）/dis'eibl/ the tunnel signs or keep the road open（保持道路开放）/kip ðə roʊd ˈoʊpən/?” “The second sensor confirms the quake（颤抖、地震）/kweik/ of air pressure. Close it for the sake of safety（为了安全）/fər ðə seɪk əv ˈseɪfti/.” Nora saw daylight（白昼、日光）/'deilait/ fade toward sudden dusk（(使)微暗）/dʌsk/, though it was only sometime（改天、来日）/'sʌmtaim/ after eleven. She took a sip（啜饮、小口喝）/sip/ of tea and compared both instruments. Their readings now matched. The first curve had not been a scandal（丑闻、中伤）/'skændәl/ or simple fault; hail really was moving over the horizon.

June ordered a temporary closure（临时关闭）/ˈtɛmpərˌɛri ˈkloʊʒər/ before noon. Workers would pave（铺设、安排）/peiv/ no new section and drivers would use the lower route. The decision required willpower（毅力、意志力）/'wilpauә/ because complaints（诉苦、抱怨）/kәm'pleint/ arrived immediately, but safety outweighed convenience（比便利更重要）/aʊtˈweɪd kənˈvinjəns/. Lately（近来、最近）/'leitli/, crews had ignored several moderate warnings, and Nora did not want habit to rip（裂痕、破绽）/rip/ trust apart. At dusk, the teams would reunite and review every bearing. For now, the tunnel signs flashed, the ridge disappeared behind hail, and the station proved its sake（目的、缘故）/seik/: turning a strange signal into responsible action.