《牛津》:短语动词
fix something on somebody/something
[often passive] if your eyes or your mind are fixed on something, you are looking at or thinking about something with great attention
《朗文》:
fix your attention/eyes/mind etc on somebody/something
to think about or look at someone or something carefully
Aziz tried to fix his mind on the job at hand.
Every eye was fixed on the new girl.
网友看了这个词典释义,应该知道不可以用fixing了吧。