我發(fā)現(xiàn)要了解他的演講主旨是很困難的。 I find it difficult to understand the purport of his speech.
研討會旨在改革舊的封閉式的評價制度,從而建立新的教育評價體系。 The purpose of this seminar is to reform the old closed system so as to establish the new system of educational assessment.
這一政策旨在維護(hù)和平。 The aim of the policy is the preservation of peace.