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AU    音标拼音: ['o]
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Au
n 1: a soft yellow malleable ductile (trivalent and univalent)
metallic element; occurs mainly as nuggets in rocks and
alluvial deposits; does not react with most chemicals but
is attacked by chlorine and aqua regia [synonym: {gold}, {Au},
{atomic number 79}]
2: a unit of length used for distances within the solar system;
equal to the mean distance between the Earth and the Sun
(approximately 93 million miles or 150 million kilometers)
[synonym: {Astronomical Unit}, {AU}]

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    au（エーユー）の公式サイト。 スマートフォン・携帯電話・インターネット回線の最新料金プランやキャンペーン、5G対応サービス・端末情報など、個人のお客さま向けサービスを幅広くご案内します。





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