obstruction例句_释义
obstruction 朗读
obstruction
音标：əb'strʌkʃən
obstruction翻译
obstruction双语用法和例句
相关单词
overwhelm overlain outcross outrival obtundent oneirology oligocene olympus omadhaun orb omniscience oxygenation occupancy outsmart occurent odiously opalize orchardman ovariectomy ozonizer