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'They are essential': How smoke detectors are evolving
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德夫林称，目前的防御指南没有任何改变。如果发生变化，以军会立刻向公众通报并提供最新指示。（央视新闻）
The US is under pressure to return to the Moon. China is aiming for a lunar landing by 2030, and has been making steady progress towards this.