It's just one of those words that's got so many negative connotations.

它只是那些有很多负面内涵意义的词之一。

'Urchin', with its connotation of mischievousness, may not be a particularly apt word.

“淘气鬼”，有调皮捣蛋的涵义，可能不是一个特别恰当的词。