And similarly old crystal radio sets and more recently modern radio frequency identification (RFID) tags, increasingly used in shipping and as antitheft devices, are powered purely by radiowaves.

同样，老式晶体管收音机，以及日益普及于航运及防盗装置上的，更新式的现代无线射频识别技术(RFID)，都是仅仅从无线电波中获取能量。

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A similarly healthy 74-year-old woman could have arteries as young as 53, or 21 years less than her chronological age.

而同样健康的74岁女性其动脉年龄只有53岁，比其实际年龄要低21岁。

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The 49-year-old comedian also served as a judge on China's Got Talent as well as a similarly formatted show, Amazing Chinese.

这位49岁的喜剧演员还曾经担任过国内两档节目“中国达人秀”和“出彩中国人”的评委。

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Halsall, another 20-year-old, was similarly philosophical about the years ahead of her as teenage prodigy Kukla beat her to 50m freestyle gold, with England's Amy Smith back in seventh.

BBC: Commonwealth Games: Three golds for English swimmers