社区警告家长要警惕那些潜伏在游乐场附近的骚扰者。

The community warned parents to be alert for ___molesters lurking near playgrounds.

学校警告称，在操场上骚扰其他孩子的骚扰者将被停学。

The school warned that ___molesters bothering other kids on the playground would get suspended.