单词	F region
释义	F region noun : the highest region of the ionosphere occurring from 80 miles (130 kilometers) to more than 300 miles (500 kilometers) Word History First Known Use 1923, in the meaning defined above
随便看	abasers abases abash abashed abashedly abashes Abashev abashing abashless abashlessly abashment abashments abasi abasias abasing abasis abassi abassis abastardize abat-jour abat-jours abat-sons abat-vent abat-vents abat-voix

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