nervous是形容词 跟在动词后面 nervous 后面不加动词 如需要介词 就加of
例句 :He is nervous of strangers. 他见到陌生人就感到紧张不安 .
be nervous about 对…紧张
As I said before， I would be nervous about refactoring without tests.
就象我以前所说的那样，重构而不进行测试我会感到不安。
The outs， in particular， may still be nervous about all this.
特别是局外人关于这些也许依然紧张
nervous about意思：对...紧张
例句：
I'll be nervous about speaking in your presence.一见你在我讲话就紧张了。
nervous of意思：v.害怕
例句：
That means to be nervous about having to do something.那意味着当心需要做某事，例如在公众前面说话