单词	impenetrable
释义	im·pen·e·tra·ble (ĭm-pĕnĭ-trə-bəl) adj. 1. Impossible to penetrate or enter: an impenetrable fortress. 2. Impossible to understand; incomprehensible: impenetrable jargon. 3. Impervious to sentiment or argument: an impenetrable heart. im·pene·tra·ble·ness n. im·pene·tra·bly adv.
随便看	andante andantino Andean Andean bear Andean condor Anders Anders Andersen Anderson Anderson Anderson Anderson Anderson Andersonville Andes andesine andesite and how Andhra Pradesh andiron Ando and/or Andorra Andorra la Vella Andorran

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