Femto
毫微微
??? 情景例句
I know it well.
我對它熟得很。
To be virtuous is to do good.
行善是美德。
Fred Pearson was walking through the university town of Oxford one morning in 1961.
1961年的某個早上，弗雷德·皮爾遜正步行通過牛津大學城。