Strata circulare
[医] 环层
🧩 词语组成解析
strata
['streitə]
n. 地层;岩层( stratum的名词复数 );地层;社会阶层;
🗣️ 情景例句
No. This is my first visit.
没有。这是第一次。
What we are ignorant of is immense.
我们不知道的东西多得不可胜数。
Frank could hardly conceal his excitement, for he knew that he had made a real discovery.
弗兰克几乎无法掩饰自己兴奋的心情，因为他明白自己发现了一件珍品。