豆大王zz
science英 [ˈsaɪəns] 美 [ˈsaɪəns] 科学;理科;学科;技术,知识
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my Grandpa is a good science
Scientific is so important that you can find it everywhere such as:museum,bookst
tim 定时 [例句]One of the mysteries surrounding Steve Jobs'decision to hand
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