理据

gāi lùn wén guān diǎn míng què lǐ jù chōng fèn

该论文观点明确，理据充分。

The thesis is clear in viewpoint and sufficient in reasoning.

lǐ jù xū děi zuò dào wú xiè kě jī

理据须得做到无懈可击。

The case has to be made watertight.