british airways cut price service; libengland: london: heathrow:extbritish airways bowing 747 taking offbritannia airways aircraft taking offbritish... - 呼吸系統 個影片檔及 b 捲影像00:14
severe sand storms and heavy haze attacked a larger area of northern china. beijing and tianjin have released the highest level warning of air... - 呼吸系統 個影片檔及 b 捲影像00:10
1978 bare chested asbestos worker breathes into a tube as technician works medical testing machine - 呼吸系統 個影片檔及 b 捲影像00:21體檢
black and white animation of the words secondary sex characteristics over illustration of adolescent boy / animation of hair and muscle growth /... - 呼吸系統 個影片檔及 b 捲影像00:44青春期
1950s animation showing network of capillaries spreading through arms of human anatomical model / audio - 呼吸系統 個影片檔及 b 捲影像00:12人體構造
black and white animation of adolescent girl going through puberty / breast and body hair growing / hips widening / voice changing / audio - 呼吸系統 個影片檔及 b 捲影像00:27青春期
healthcare: cpap, senior adult woman sleeping and wearing a mask that improves her sleeping - 呼吸系統 個影片檔及 b 捲影像00:09
healthcare: cpap, senior adult woman sleeping and wearing a mask that improves her sleeping - 呼吸系統 個影片檔及 b 捲影像00:09
seis hombres fueron tratados por problemas respiratorios en el principal hospital de afrin en siria el viernes tras un bombardeo del regimen turco... - 呼吸系統 個影片檔及 b 捲影像01:02
german carmakers have come under fire following revelations they helped finance experiments that saw humans and monkeys exposed to diesel fumes that... - 呼吸系統 個影片檔及 b 捲影像01:06