Diisocyanate
[机] 二异氰酸盐
🗣️ 情景例句
Does he have a family?
他有亲人吗？
I know the boy whose father is a mailman.
我知道那个男孩的父亲是邮差。
he submits himself to a more ruthless discipline than any critic dreamed of,
就应按任何评论家想像不到的无情规范约束自己去写作；