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
Creep--c-r-e-e-p.
Creep c-r-e-e-p。
Don't tell anyone that I did it.
别说是我做的。
On her way home she bought a new pen at a shop.
回家路上，她在一家商店买了一支新钢笔。