Strata externum
[医] 外层
🧩 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
I'm going to party after exams.
考试结束后，我要去聚会。
All is not gold that glitters.
闪闪发光的不见得是金子。
I immediately embarked on an experiment which, even though if failed to get rid of the ants, kept me fascinated for twenty-four hours.
我当即动手作了一项试验，这项试验尽管没有使我摆脱这些蚂蚁，却使我着迷了24小时。