The video owner has disabled playback on external websites.
This video is no longer available on YouTube.
This video cannot be played right now.
Watch on YouTube
B1 中级
英语
2:56
Educational
Space Archaeology: A New Frontier of Exploration | National Geographic
学习统计
B1
CEFR 等级
5/10
难度
评论 (0)
登录后评论
还没有评论。成为第一个分享想法的人！
互动模式
测验
正确！
不太对。
正确答案：
相关视频
Sunday Scrum | Canada’s response to strikes in Iran, concerns over Carney’s trade mission to India
B1
18:49
Andrew Fisher, Deaf Comedian - "Obligatory interpreter jokes" (with subtitles)
B1
1:13
Snow Leopards 101 | Nat Geo Wild
B1
4:06
NYC vlog | a fun girls trip getaway
B1
20:29
But why is a sphere's surface area four times its shadow?
B1
15:51
National Geographic
测验
正确！
不太对。
正确答案：
观看视频时会出现测验
记忆技巧
来自此视频
免费开始学语言
