Today's Sentence
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Max 6 minutes
I think, before we leave home and start exploring the heavens, we should at least explore our own backyard more thoroughly.
Original Video：
CNN10: Challenger Deep of the Mariana Trench
Key Vocabulary
1. explore
explore
[ɪkˈsplɔr] (v.)
2. backyard
backyard
[ˌbækˈjɑ:rd] (n.)
3. thoroughly
thoroughly
[ˈθɜ:rəli] (adv.)
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