noun🔗Share恐龙， 恐龙类。 In scientific usage, any of the animals belonging to the clade Dinosauria, especially those that existed during the Triassic, Jurassic and Cretaceous periods and are now extinct."Many children are fascinated by dinosaurs, especially the huge ones that lived millions of years ago. "很多孩子都对恐龙着迷，特别是那些生活在数百万年前的巨大恐龙类。animalsciencebiologygeologyhistoryChat with AIVocabulary GamePractice Reading
noun🔗Share恐龙 In non-scientific usage, any non-avian dinosaur."My son loves dinosaurs, especially the ferocious ones. "我的儿子很喜欢恐龙，特别是那些凶猛的恐龙。animalbiologynaturesciencegeologypastChat with AIVocabulary GamePractice Reading
noun🔗Share恐龙，古代爬行动物 Any extinct reptile, not necessarily belonging to Dinosauria, that existed between about 230 million and 65 million years ago."Many children are fascinated by dinosaurs and enjoy learning about the different kinds that lived long ago. "很多孩子对恐龙以及其他古代爬行动物着迷，并且喜欢学习很久以前生活过的不同种类。animalbiologygeologyhistorynaturesciencepastorganismChat with AIVocabulary GamePractice Reading
noun🔗Share老古董，恐龙. A person or organisation that is very old, has very old-fashioned views, or is not willing to change and adapt."The school's administration is a bit of a dinosaur when it comes to technology; they refuse to adopt online learning platforms. "学校的管理层在科技方面有点像老古董；他们拒绝采用在线学习平台。attitudeorganizationpersonbusinessindustrysocietyageChat with AIVocabulary GamePractice Reading
noun🔗Share过时的东西，老古董。 Anything no longer in common use or practice.""Using floppy disks to save computer files feels like working with dinosaurs; nobody does that anymore." "用软盘保存电脑文件感觉像是在摆弄老古董，现在没人这么做了。historypastChat with AIVocabulary GamePractice Reading
