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 sure the store has others.
我相信那家店一定还有其它的尺寸。
I couldn't see you.
我看不到你。
Everyone in China likes Mid-Autumn Day.
在中国人人喜欢中秋节。