2020全科免费活动Day10任务
活动介绍 2020年免费活动介绍 Day 10 听说读写四科任务内容 阅读 听力 口语 写作 Reading Day 10 Listening Day 10 Speaking Day 10 Writing Day 10 Day 10 内容讲解获取方式 群内会统一发送（发送时间：早10点、下午6点、晚上9点） (活动长期免费，参与活动不用转发，不用集赞，不用出卖个人信息)
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训练营文章讲解day3
Determining the Ages of the Planets and the Universe （天文类） 逐题视频讲解 题号 答案 解析 1 B 视频讲解 2 C 3 D 视频讲解 4 A 5 A 视频讲解 6 A 视频讲解 …
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