1ADJ [ADJ n]引言的;导论的;介绍性的 An introductory remark, talk, or part of a book gives a small amount of general information about a particular subject, often before a more detailed explanation. 引言的;导论的;介绍性的
...an introductory course in religion and theology.
2ADJ [ADJ n](新品)促销的,特惠的 An introductory offer or price on a new product is something such as a free gift or a low price that is meant to attract new customers. (新品)促销的,特惠的 [business]
...just out on the shelves at an introductory price of £2.99.