Chlorobium
绿菌属
🗣️ 情景例句
Will you excuse me?
我失陪了
He was absent yesterday. Do you know why?
昨天他没到，你知道为什么吗？
Fred Pearson was walking through the university town of Oxford one morning in 1961.
1961年的某个早上，弗雷德·皮尔逊正步行通过牛津大学城。