Today's Sentence
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A lightyear is a unit of astronomical distance equivalent to the distance that light travels in one year.
Original Video：
Cast and Crew of Lightyear | What's Up, Disney+
Key Vocabulary
1. astronomical
astronomical
[ˌæs.trəˈnɑː.mɪ.kəl] (adj.)
2. equivalent
equivalent
[ɪˈkwɪv.əl.ənt] (adj.)
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