expertise

柯林斯词典

1. N-UNCOUNT Expertise is special skill or knowledge that is acquired by training, study, or practice. 专业技能; 专业知识
She was not an accountant and didn't have the expertise to verify all of the financial details. 她不是会计，不具有核查所有这些财政细目的专业知识。

I've been in this job for 30 years , and I've picked up a good deal of expertise along the way.
Software is not really my area of expertise.
You place too much reliance on her ideas and expertise.
He is known for his expertise in the history of British economics .
The database is simple to use and requires no expertise at all.