ex·pos·i·to·ry /-zəˌtori, ˌtɔr-/
(a.)說明的,解釋的
Ex·pos·i·to·ry a. Pertaining to, or containing, exposition; serving to explain; explanatory; illustrative; exegetical.
A glossary or expository index to the poetical writers. --Johnson.
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expository
adj : serving to expound or set fourth; "clean expository writing"
[syn: expositive]