Dewar structure
[建] 杜尔结构
🧩 词语组成解析
n. [亦作d-]=Dewar flask
🗣️ 情景例句
What did you see on your vacation?
在假期中都看了些什么？
I know the boy whose father is a mailman.
我知道那个男孩的父亲是邮差。
I think that's a good idea.
我认为那是个好主意。