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
Are you feeling better?
你觉得好些了吗？
The message is often a famous quotation, religious principle or short poem.
格言经常是一句著名的名言、宗教教条或短诗。
so that there are heavy odds in favour of our dying between the ages of sixty-five and eighty.
我们最可能死亡的年龄在65至80岁之间，