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
Claim concerning transportation should be referred to the shiping company.
涉及运输问题，应当向船运公司提出索赔。
Where have you been all this time?
这段时间你跑到哪里去了？
I felt very nervous when I went into his office.
我走进他的办公室，感到非常紧张。