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TOEFL BNC: 8071 COCA: 11902
stratum
strɑːtəm strtəm ˈstreɪtəm ˈstrætəm
Word forms: plural strata
1 N-COUNT 社会阶层 A stratum of society is a group of people in it who are similar in their education, income, or social status. 社会阶层 [formal]
  • It was an enormous task that affected every stratum of society. [+ of]

    这是一项影响到社会各阶层的重大工作。

  • The rebels came overwhelmingly from the poorest strata of rural society.

    叛乱分子绝大多数来自农村的最贫困阶层。

2 N-COUNT [usually plural] 岩层 Strata are different layers of rock. 岩层 [technical]
  • Contained within the rock strata is evidence that the region was intensely dry 15,000 years ago.

    岩层中有证据表明,该地区在 15,000 年前曾经非常干旱。

Trends of stratum
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TOEFL BNC: 8071 COCA: 11902
TOEFL BNC: 8071 COCA: 11902
TOEFL BNC: 8071 COCA: 11902

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