at great length的音标：at great length的英式发音音标为：[æt ɡreit leŋθ]at great length的美式发音音标为：[æt ɡret lɛŋkθ]...

He expounded his views on the subject to me at great length.他详细地向我阐述了他在这个问题上的观点。She rambled on at great length but she didn't get to the heart of the matter.她夹七夹八地说了许多话也没说到点子上.The scholar discoursed at great length ...

详细地；细致地，洋洋洒洒...