Lesson Ten lose sight of 忽略;忘记 alignment 定位;结盟;校正 play .(up) with 以..自娱 hungry for a 渴望的 proliteration 扩散;激增 constituency 全体选民;顾客;赞助者 fragility 脆弱;脆性 attrition n 摩擦;损耗Lesson Ten lose sight of 忽略；忘记 alignment n. 定位；结盟；校正 play…(up) with 以……自娱 hungry for a. 渴望的 proliferation n. 扩散；激增 constituency 全体选民；顾客；赞助者 fragility n. 脆弱；脆性 attrition n. 摩擦；损耗