After the 1960 s, China began to inoculate BCG, pertussis, diphtheria, tetanus, measles and poliomyelitis vaccines.六十年代后, 中国开始在大、中城市接种卡介苗 、 百日咳 、 白喉 、 破伤风 、 麻疹、脊髓灰质炎的疫苗的工作.The prompt administration of diphtheria antitoxi...
Tighter credit conditions are sapping already feeble demand.紧缩的信贷让本就无力的需求更加乏力.Stop sapping her confidence!别动摇她的信心!The 1930 s brought bull markets followed by bears, taking back gains and sapping investor confidence.三十年代先...
The view of lake and plunging cliffs seduces visitors.湖光旖旎、峭壁峥嵘，游客们被深深吸引了。The cliffs, lapped by a crystal-clear sea, remind her of Capri.清澈的海水拍打着悬崖峭壁，令她想起了卡普里。The man and his son Mark had abseiled down the sheer cliffs.这...