Smoke alarms have been around for many decades. The technology has barely changed in recent years – but is modern life slowly outpacing the capabilities of these life-saving devices?
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但這位總統面臨的挑戰在於，他的公眾支持率徘徊在40%左右，而美國民眾希望他採取更多行動來解決他們的擔憂。上個月，他在白宮發表全國演說時，也使用了類似主題與統計數據——但未能說服公眾。總統與他的幕僚似乎寄望於國情咨文更大的觀眾群（預計數千萬人）能帶來不同結果。
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A spokesperson for Aston Martin said US tariffs had been "extremely disruptive" and demand had also been "extremely subdued" in China, the world's biggest auto market.