口语：“闲人免进”的英语怎么表达？(2)

如果你想说的“禁区”是非军事区，最好用上面的表达。

不过，我们还是来做用英语说英语练习吧：
1. Well, when we say Restricted Area,we can also say something like Authorized Personnel Only,Staff Only,No Unauthorized Entery.
2. That means you are not allowed to enter without a permission
3. You are not allowed to enter without a permission means You are prohibited from entering if you do not have a permission.
能熟练运用这些基本学过的英语理解和表达restricted area远远比你用中文死记硬背英语restricted area强的多。