今天我们来一起学下打小报告，用英语怎么说。
这里我们将学到 tell 这个单词
tell on
我们来看下它的英文释义： If you tell on someone, you give information about them to a person in authority, especially if they have done something wrong.
中文释义：（非正式）告发，告状；说坏话；泄密
例句:
Lily didn't know if she should tell on Tim.
Lily 不知道是否应该揭发Tim。
Teacher:Now the boy's parents are coming in,and trust me,they're mad as Hello Kitty.
现在那个男孩的家长来了，他们简直像疯了的Hello Kitty。
Mitchell:Oh,you told his parents on us? That is so not cool.
你向他的家长告我们的状啦？这实在太不够意思了！
