Enclosure theorem
[计] 界限定理
🧩 词语组成解析
🗣️ 情景例句
Is this harmful to kids?
这对孩子有害吗？
That's fine. Fill out this form and let me see your credit card, please.
好极了，请填一下这张表，再给我看一看你的信用卡。
It's about a time when there were black slaves in North America. It's about their fight for freedom.
（它）讲的是有一段时期，北美洲存在黑奴。影片讲述他们为自由而斗争的情况。