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。
Though Mrs.Busssman fully acquainted with this story, she thought that there was a chance in a million that she might be right.
尽管巴斯曼夫人熟知这个情况,但她仍然认为自己的想法仍有百万分之一的可能性。