it's very difficult when one is so articulate and is able to express exactly what you want to say,

当一个人已经熟谙一门语言，能够用这门语言清楚明白地表达意思，

想学好英语吗？ - SpeakingMax英语口语达人

It's about speaking to people, about getting your word out in order to be, you know, good.

喜剧需要说给观众听，向他们明白地表达意图。

街头表演很有趣 - SpeakingMax英语口语达人