not know how to say it

Students who, when speaking English, have a lot that they would like to say but do not know how to say it.

说英语的时候，总感到有很多想说，但又不知道如何组织内容。

Scott: I agree. But I think at our size it is more dangerous to not try things than it is dangerous to try them. If you so and say, OK, this is the way we've always done it, you can't do this. How do you know'?

斯科特：我同意我想对于我们这种规模的公司，不去尝试某些事情所带来的比去尝试这些事情的风险还要大如果你说，好的，这是我们做事情的方式，你们不能这样做，那你怎么能知道呢？

Students who have a lot to say but do not know how to say it and still have not got used to using English in everyday conversations.

较紧张，有很多想说，但说不出来，还没有习惯用英语进行日常交流。