開發(fā)的英語翻譯：

develop; exploit; exploitation; open out; open up; tap
【經(jīng)】 development; exploit; exploitation; tapping

說明的英語翻譯：

explain; narrate; account for; illustrate; make out; say; show; specify; state
directions; explanation
【計(jì)】 DCL; declaration; elucidata; explanatory notes
【化】 specification; specify
【經(jīng)】 explanation; explanatory note; justification