探讨inquire into
explain
(1) To make plain or comprehensible.说明：使变清楚或可理解
(2) To define; expound:解释；说明：
We explained our plan to the committee.
我们把自己的方案向委员会做了说明
illustrate
(1) To clarify,as by use of examples or comparisons.
说明：通过举例子或打比喻等方法把问题讲清楚
(2) To clarify by serving as an example or comparison.
举例说明：运用例证或比喻把问题讲清楚
论证 expound and prove
结合我国的实际情况提出相应建议give suggestions based on the specific conditions in our country
文献综述literature review