Perhaps that’s the biggest irony of all. Space is huge and mostly empty—and yet there’s no easy way to throw things out.
最新研究显示，科技创新水平提高有力支撑了我国全要素生产率增长，2013年至2023年年均增长率为2.2%，在全球120个经济体中居第三位。这背后是我国经济结构向优、创新动能持续增强，高质量发展的底气更足、韧性更强。
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Japan will deploy missiles to a tiny island near Taiwan within five years, its defence minister has said, in a move that is likely to inflame tensions with China.