Strata compactum
[医] 致密层(蜕膜)
🧩 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;
紧统, 紧致统［拓扑］
🗣️ 情景例句
What has kept you so busy?
什么使你这么忙？
You're sick!
你有病啊！
Mr Hu stood at the starting line. All the runners got ready to run.
胡先生站在起跑线上。所有的运动员都做好了起跑准备。