单词 难得到 例句 DEFINITIVE EXAMPLES 权威例句〔altitude〕At high altitudes it is difficult to get enough oxygen.在海拔高的地方很难得到足够的氧气。朗文当代〔dignify〕Tragic literature dignifies sorrow and disaster.悲剧作品使悲伤和灾难得到了升华。外研社新世...