No unauthorized entry

• 未经许可； 不得入内

No unauthorized entry的用法和样例：

例句

1. No one is to stay here without permission.
   任何人未经许可不得在此停留。
2. No unauthorized person is allowed in the room while the examination is in progress.
   当考试进行时，未经许可者不得入内。
3. There is no admittance without a security pass.
   无保安通行证不得入内。
4. No one would be let in without a ticket.
   无票者一律不得入内。