Strata eboris
[医] 象牙质, 牙质
🧩 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
I find that hard to swallow.
对这一点我难一相信。
When a friend asks, there is no tomorrow.
朋友的要求不要拖。
How many people lived here?
多少人住在这里？