They may be ancient "beer-making tools", and the earliest direct evidence of beer brewing in China, the researchers reported in the Proceedings of the National Academy of Sciences.
2017年6月四級真題（第一套）閱讀 Section A
英語六級真題
Terrie Moffitt's paper on "The link Between Childhood Self-control and Adult Status Decades Later" is published in the Proceedings of the National Academy of Sciences.
2016年6月六級真題（第一套）聽力 Section C
柯林斯高階英漢雙解學習詞典釋義
N-COUNT
訴訟
Legal proceedings are legal action taken against someone.