正文

VOA慢速英语:旅行者2号发现星际空间新奥妙

2019-11-11来源:和谐英语

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Words in This Story

mission – n. an important task, usually involving travel

bubble – n. an enclosed or isolated space

transitional – adj. changing from one system or method to another

characteristic – adj. typical of someone or something

specific – adj. a particular thing and not something general

contrary – adj. opposite or very different