Firstly, we discuss the singular topological structure of the Gauss-Bonnet-Chern theorem based on the Chern-Weil theory.是什么意思_Firstly, we discuss the singular topological structure of the Gauss-Bonnet-Chern theorem based on the Chern-Weil theory.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句