落单了，还被围攻，通常的结果都是寡不敌“众”，be outnumbered就是“对方人数多过我方”的意思，例如：
The girl was brave enough, but as being outnumbered, she was finally knocked into the middle of next week by the gang.
她很勇敢，但终因寡不敌众，被那帮人打晕过去
Knock into the middle of next week 字面意思是“打得某人不知道星期几”，就是“把某人打晕/打得不省人事”的意思。