Closed boundary
[化] 闭式边界
🧩 词语组成解析
closed
[klozd]
adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的;
v. “close”的过去式和过去分词;
clos=close关闭+ed已...的→关闭了的
🗣️ 情景例句
Yes, she does. She works at home.
是的，她工作。她在家里工作。
I remember the girl whose father goes there every autumn.
我记得那个女孩的父亲每年秋天都去那里。
How long have you been at this school?
你到这学校有多么时间了？