pioneers/ˌpaɪəˈnɪr/名词先驱，先锋，创始人a pioneer heart surgeon心脏外科的先驱/ˌpaɪəˈnɪr/动词做先锋，当开拓者，倡导It was universities that pioneered these new industries.是大学开创了这些新兴产业。想跟读，去练习
