人教社新编高中语文第一册《烛之武退秦师》一文中有“既东封郑，又欲肆其西封”句。课本将“东封郑”注为：“在东边使郑国成为它的边境。封，疆界。这里做动词”；将“肆其西封”注为：“往西扩大边界。……肆，延伸、扩张。封，疆界。”同学们按此两注翻译句子实难准确表达 People teach the new high school in the first volume of Chinese language “Candle Wu repay Qin division,” a text, “both east and west, but also wantonly its west seal” sentence. The textbook, “Dong Chengzheng,” notes: “In the east, Zheng made its frontier, the frontier, the verb here,” and “ Extension, expansion. Feng, border. ”Students according to these two notes translation is difficult to accurately convey the sentence