Significado: birefringence 
n. En óptica, ruptura doble de un rayo de luz en dos diferentes direcciones dando como resultado dos rayos de luz diferentes
refr Idioma
refrain from
You must refrain from spitting in the street．你不能在街上随地吐痰。
Plesse refrain from smoking．请勿吸烟。
I pur posely refrain from arguing with him．我有意克制自己不和他争辩。
I refrained from further words．我忍住没有再说下去。
2．prevent from阻止；防止
Fortunately he was refrained from wrongaoing．很幸运，他被阻止没有做出蠢事来。
An refr idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with refr, allowing users to choose the best word for their specific context.
Diccionario de palabras similares, Sinónimos, Diccionario Idioma refr
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