tell常见的搭配有：

tell *** sth 告诉某人某事

tell *** not to do sth 告诉某人不要去做某事

tell *** to do sth 告诉某人去做某事

tell *** about sth 向某人讲述某事

tell from 区别,辨别,认出

tell A from B：把A 和B分辨开/区分开来

tell right from wrong：明辨是非；辨别是非。