英语听力精选进阶版 14485（在线收听） |
Insect-inspired robots Vocabulary swarm a large group (usuaully of insects) which moves together spindly long, thin and delicate shuffle (here) to move around slowly and without much energy blinking flashing on and off teamwork the ability to work together as a team sweep (here) to move quickly across an area, searching for things |
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