Iceland has no shortage of natural dangers – volcanic eruptions, glacial floods, scaldingly hot springs and bitterly cold winters. But it is at least one of the few places on Earth where humans don't ...

媒体英语 中级 Cambridge University scientists create robotic hand able to hold objects 剑桥大学科学家研发出能抓握物体的机械手 Episode 231211 / 11 Dec 2023 科学家们设计了一种只凭手腕运动就可以抓握物体的机械手。