Rhenite
[化] 亞錸酸鹽
??? 情景例句
It doesn't mean you have to be a doctor.
這并不意味著你一定要當醫生。
Two blacks do not make a white.
兩個烏黑不等于一個清白。
that people have for years assumed that the process of losing vigour with time,
多年來就已認識到。生命力隨著時間流失而喪失活力，