Undetermined boundary
[法] 未定边界
🧩 词语组成解析
a. 未经决定的, 未确定的, 性质未明的, 形式未定的, 缺乏决断力的\\n[计] 未定的
🗣️ 情景例句
And I've been thinking about it a lot lately.
最近我一直就此事想了很多。
As you all know.
你们知道。
Thank you .It was very nice of you to help me.
谢谢你帮我，你真好。