Leucoflavin
无色核黄素
🗣️ 情景例句
Where are your manners?
你的规矩哪里去了？
She was so stunned, that she couldn't speak.
她惊愕得说不出话来。
Winter was coming on and the hills threatened the surrounding villages with destruction, for heavy rain would not only wash away the soil but would cause serious floods as well.
冬季即将来临，这些山丘对周围的村庄具有毁灭性的威胁，因为大雨不仅会冲走土壤，而且还会引起严重的水灾。