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AS IT IS 2015-05-04 Body Cameras Seen as Good and Bad for US Police Officers The recent violence in Baltimore, Maryland follows incidents around the United States in which police officers have been accused of wrongdoing. As a result, police departmen
可穿戴相机有助美国警察执法 Houston Chief of Police Charles McClelland supports the use of body cameras, but he said they also present problems. 休斯顿警察局局长查尔斯麦克兰德支持为警员配备可穿戴相机,但他表示
Shoelace Study Untangles a Knotty Problem 鞋带易结也易解 Youre strolling down the street or maybe hauling that load of laundry down a flight of stairs when all of a sudden. [sound fx] Your laces come undone. If youve ever pondered what precipi
Shoelace Study Untangles a Knotty Problem鞋带易结也易解 Youre strolling down the street or maybe hauling that load of laundry down a flight of stairs when all of a sudden. [sound fx] Your laces come undone. If youve ever pondered what precipit
By Paul Sisco Washington, DC 17 October 2007 Medical imaging and improved computer technology are significantly making the detection of heart disease easier, safer and better. VOA's Paul Sisco reports. Dr. James Earls is the medical director at Fairf
今天我们要学的词是malfunction。 Malfunction, 是失灵的意思。A United Airlines flight made an emergency landing because of a landing gear malfunction, 由于飞机起落架失灵,美国联航的一架客机被迫紧急着陆。The ho