明.设计
东北平原,华北平原和长江中下游平原Northeast Plain, North China Plain and the middle and lower reaches of the Yangtze River Plain重点词汇释义东北平原Northeast China Plain华北平原plain of North China; North China Plain长江中下游the middle and lower reaches of Changjiang River平原plain; flatlands; flat country; champagne; Campagna
