Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码,这些瓶子可免费保存两个月。
It has always been a mystery to me who city dwellers, who appreciate all these things, obstinately pretend that they would prefer to live in the country.
城里人对这一切心里很明白,却偏要执拗地装出他们喜欢住在乡村的样子,这对我来说一直是个谜。