rolloutKK [ˋroˏlaʊt] /ˈɹoʊˌlaʊt/发音名词1推出、上市、发表The company delayed the rollout of its new phone until spring.公司把新手机的推出时间延后到春天。2推行、实施、部署The vaccine rollout reached rural areas much later than expected.疫苗的施打作业在偏乡地区比预期晚了许多。3首次公开展示正式Thousands of engineers attended the rollout of the new aircraft.数千名工程师出席了这架新飞机的首次公开展示。用这个字练口说→相关片语roll out