谈论某事 meaning in English

talk about (sth)
talk about(something)

We can talk about how something helps helps you , e . g .
我们可以谈论某事对你helps有用。
If you want to talk about how something usually or normally is , you can use usually , e . g
如果你想谈论某事通常或者一般的情况，可以用usually通常.例如
His speech was n ' t clever and many of the students felt it was boring . because he did n ' t give a speech to his audience he just talked about something
他的那个演讲并不怎么好，许多学生觉得很乏味，因为他并不是在向听众做演讲，他只是在谈论某事。