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。
He hitchhiked to Dover and, towards evening, went into a boat to find somewhere to sleep.
他搭便车到了多佛,天快黑时钻进了一条船,想找个地方睡觉。