用英语交谈 是：talk in english or talk with english?

in 只用某种方式,方法.
with 只与某事,某人,也会用在用某种方式,方法之上
但是,在语言方面,地道用法都是用in,这已经成为了固定用法.
例如：please speak in Chinese. 请说中文
You can write them in english. 你可以用英文写
此例：talk in english. "用英语交谈"
----------与君共勉