N
基本词汇
abbr.(美国)国家科学院(=National Academy of Sciences)abbr.国家农业学会(=National Agricultural Society)abbr.国家听力学会(=National Auditus Society)
abbr.(美国)国家科学院(=National Academy of Sciences)
abbr.国家农业学会(=National Agricultural Society)
abbr.国家听力学会(=National Auditus Society)