B1 a detailed study of a subject, especially in order to discover (new) information or reach a (new) understanding研究；调查；探索
He has dedicated his life to scientific research.
He emphasized that all the people taking part in the research were volunteers.
The state of Michigan has endowed three institutes to do research for industry.
I'd like to see the research that these recommendations are founded on.
It took months of painstaking research to write the book.
B2 to study a subject in detail, especially in order to discover new information or reach a new understanding研究；调查；探索
The amount of time and money being spent on researching this disease is pitiful.
We are researching the reproduction of elephants.
She researched a wide variety of jobs before deciding on law.
He researches heart disease.
The internet has reduced the amount of time it takes to research these subjects.