gorge和valley有何区别？
gorge n. 咽喉, 胃, 暴食, 山峡, 峡谷, 障碍物 v. 狼吞虎咽, 塞饱 (1) A deep, narrow passage with steep rocky sides; a ravine. 峡谷：两边是陡峭岩壁的深的、狭窄的走廊 (2) A narrow entrance into the outwork of a fortification. 狭窄入口：要塞的外围工事的狭窄入口 valleyn.谷，河谷；流域