An insufficient or inconsequential amount in comparison with what is required.沧海一粟：与所需数量相比不足或不合理的
英语四级真题
Since industrialization, maintaining such a slow cultural metabolism has been much harder, with the long midday meal shrinking to whatever could be stuffed into a lunch bucket or bought at a food stand.
出自-2016年6月阅读原文
since industrialization, maintaining such a slow cultural metabolism has been much harder, with the long midday meal shrinking to whatever could be stuffed into a lunch bucket or bought at a food stand.
2016年6月四级真题（第二套）阅读 Section C
柯林斯高阶英汉双解学习词典释义
N-COUNT
（有提手的）桶，吊桶，水桶
A bucket is a round metal or plastic container with a handle attached to its sides. Buckets are often used for holding and carrying water.