永动机为何违反热力学定律？
B2 Chinese listening practice · Mainland Mandarin · Curated for upper-intermediate learners
About this clip
A 5:27 video in Chinese at B2 level, suitable for upper-intermediate learners. The speech is at a natural pace around 265 words per minute, rated 4.2/5, hard listening difficulty by Reelang’s algorithm.
What this clip covers:
- ▸Science - Discoveries, experiments, and how the world works.
From 永葆探索热情 — TED-Ed↗ on YouTube.Watch original→
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