How to pronounce word in English - Learn English free online - orthohelium - How to pronounce the english word orthohelium in english. Start with S. Learn from me. - www.pronounceword.com

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orthohelium. How to pronounce the english word orthohelium.Start with S. Learn from me.

orthohelium

英语发声

美语发声

网络释义

1、[化学]正氦

...orthography 正字法；表音法；正交射影；正射投影orthohelium 正氦orthohydrogen 正氢 ...

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