The students showed great interest after the professor gave a brief introduction to the course.
教授簡單介紹了這門課程之后，學生們表現出極大的興趣。
It's a useful introduction to an extremely complex subject.
這是對一門極為復雜的學科的有益入門教程。
This album was my first introduction to modern jazz.
這張專輯唱片讓我初次接觸了現代爵士樂。
On balance, the book is a friendly, down-to-earth introduction to physics.
總而言之，這是一本通俗而務實的物理入門書。
Ecuador provides a perfect introduction to South America; it's a continent in miniature
厄瓜多爾是認識南美洲的絕佳切入點，它是南美大陸的縮影。