预约成功
boundary
名词复数: boundaries
n.边界;分界线
例句：用作名词 (n.)
We crossed the state boundary at midnight.
我们在午夜穿过了州界。
They marked the boundaries of the football fields.
他们画出了足球场地的边界。
Scientists continue to push back the boundaries of knowledge.
科学家不断地把知识领域的边缘向外扩展。
The lane is the boundary of our land from theirs.
那条小路就是我们这片地与他们那片地的分界线。
Father wasn’t born yesterday; you cannot take him in with any sample tale. 别以为父亲一无所知,简单的谎言骗不了他。
