30.

child abuse
虐待儿童

[双语解释]

The physical and verbal mistreatment of children.
对儿童进行身体上和言语上的虐待。

例句:

The most unnerving thing about child abuse is the number of cases that go unreported.
有关虐待儿童方面最让人不安的事情是大量的此类行为没有报道。