In conversational English “is not” often contracts to “isn't”.

口头英语中is not常isn't。

The article is written in a conversational style.

该文是以对话的形式成的。

In conversational English “is not” often contracts to “isn’t”.

英语口语中is not常isn’t。

She values herself on her conversational powers.

她常夸耀自己的能言善辩。

Her tone was mild, almost conversational.

她的语气很温和，几乎就像在谈话一般。