obsolescence用法_例句
obsolescence 朗读
obsolescence
音标：ɒbsə'lesəns
obsolescence翻译
obsolescence双语用法和例句
相关单词
orgiast osset ostracoderm oogamous occipita orthocharmonium ojt overset orally osmol ostensive oinochoe oodbs oligarchic overcome ocarina olmec operant outsang oomingmack