An insufficient or inconsequential amount in comparison with what is required.滄海一粟：與所需數量相比不足或不合理的
英語四級真題
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月閱讀原文
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月四級真題（第二套）閱讀 Section C
柯林斯高階英漢雙解學習詞典釋義
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.