tell（up）on
1．disclose；inform against告密
I'll tell on you when the teacher gets back．老师回来时，我将把你的事汇报给老师。
Jimmy told on his brother for breaking the vase．吉姆把弟弟打碎花瓶的事告诉了妈妈。
2．have bad effect on对…有恶劣影响
All those late nights are beginning to tell on his health．他熬了那么多夜，身体受到了影响。
All this smoking and drinking will tell on his health in later life．这样地抽烟喝酒将对他今后的健康不利。
The noise pollution is telling on her nerves．噪音污染使她的神经受不了。