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VOA慢速英语:波士顿动力发布首款搬箱子专用机器人
2021-04-02来源:和谐英语
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pretty much –adv. (informal) not completely but mostly
universally –adv. by everyone or everything
base –n. the bottom part of something, support beneath something
delivery –n. the act of taking something to a person or place
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