He has a comprehensive knowledge of medicine.

他有广泛的医学知识。

youdao

We are working on the study of food, a comprehensive knowledge on people's food phenomena, behaviors, natures, features and laws of food in diverse cultural contexts of different periods.

我们是食学工作者，食学是研究不同时期、各种文化背景人群食事行为、事象、性质、特征及其规律的一门综合性学问。

youdao

Besides, a comprehensive knowledge of household management, social etiquette, education and domestic entertainment is needed.

此外，还应具备家务管理、社交礼仪、教育以及家庭娱乐等综合性知识。

youdao

He exhibits a comprehensive knowledge of events, making very few factual slips.

ECONOMIST: American history

He wanted to make sure his workers kept up a comprehensive knowledge base, so when the Japanese offered to sell him integrated circuits at half price, he refused.

FORBES: Leadership

What might be a failing in terms of our comprehensive knowledge of the world, is a total win for marketers and app makers.

FORBES: If You Have A Great Idea (And $1,500) You Can Be A Google Glass Explorer