▍原文 For seven years, officials in the Czech Republic had pushed a dam project to protect a river south of Prague, and the critically endangered species living in it. But the project, hamstrung by land negotiations, stalled. In the meantime, a group of chisel-toothed mammals—renowned for their engineering skills and work ethic, and unencumbered by bureaucracy—decided to take on the task. The beavers' fast work saved the local authorities some one point two million euros. ▍語言點 1. push /pʊʃ/ v. 大力推進 · push for reforms 努力、推動改革 2. critically endangered species 極危物種 · critically adv. 極度地 · endangered species 瀕危物種 3. hamstring /ˈhæmstrɪŋ/（本文）v. 使癱瘓，嚴重阻礙；n. 腿筋 4. stall /stɑːl/ v.（進程）暫停、推后，陷入停滯 5. renowned for 因……聞名 6. unencumbered by 不受……束縛 7. take on 接受（責任、挑戰） 8. beaver /ˈbiːvər/ n. 河狸 · work like a beaver 像河狸一樣工作，形容人干活賣力、勤奮高效 9. some /sʌm/ /səm/...