就这一课题做了详尽的研究 meaning in English
have conducted exhaustive research regarding the subject
Examples
- Many people believe that capital punishment deters crime . but although criminologists have conducted exhaustive research regarding the subject , little evidence exists to support the claim
很多人相信极刑能阻止犯罪。但是，虽然刑事学家就这一课题做了详尽的研究，几乎没有证据能支持这种说法。