载有核导弹的美国轰炸机进入韩国空域，旨在向进行第四次核试验后的朝鲜施压。

　　The long-range bomber, which departed from the U.S. Anderson base in Guam on Sunday morning, arrived and flied over South Korea’s Osan air base at about noon, South Korea’s Yonhap news agency reported.

　　据韩联社报导，周日上午B-52远程战略轰炸机从关岛安德森空军基地起飞，从韩国乌山空军基地上空飞过，于当地时间十二点左右到达朝鲜半岛上空。

　　Air forces of South Korea and the United States made the joint announcement when the nuclear missile-mounted bomber arrived, Yonhap reported.

　　韩美两国军方发表联合声明，载核导弹轰炸机已到达朝鲜半岛。

　　The B-52 bomber can infiltrate at the highest altitude of 55,000 feet, or 16.8 km, carrying 35 conventional bombs and 12 cruise missiles.

　　B-52轰炸机的作战范围可达到55000英尺(16.8千米)的高度，载有35枚常规炸弹和12枚巡航导弹。

　　It can also deliver air-to-ground nuclear missiles with a range of 200 km and air-launched cruise missiles with a range of 2,500-3,000 km.

　　它也可以提供射程为200千米的空对地核导弹，以及空射射程为2500-3000公里的巡航导弹。

　　The deployment came as part of retaliatory measures after the DPRK said Wednesday it had successfully tested a hydrogen bomb.

　　上周三朝鲜宣布成功完成氢弹测试，，此次美国轰炸机战略部署旨在向朝鲜施压报复。

　　If confirmed, it would mark the DPRK’s first hydrogen bomb test and the fourth nuke test in total. Previous tests were conducted in 2006, 2009 and 2013.

　　如果朝鲜的此次氢弹测试得到证实，这将标志着朝鲜第一颗氢弹的试验成功，同时也是第四次核试验成功。前三次核试验分别是在2006年、2009年和2013 年进行。

　　In retaliation for the nuclear test, South Korea began blaring propaganda messages at Friday noon from speakers across the border into the DPRK, which called it an "act of declaring war."

　　为应对朝鲜核试验，上周五正午韩国在朝韩两国边界通过扩音广播向朝鲜“宣战”。

　　The South Korean frontline units, near 11 sites where the set of loudspeakers restarted psychological warfare with anti-DPRK messages, have been on the highest alert.

　　韩国前线单位，重启喇叭隔空喊话进行心理宣战的近11个地点，一直处于最高警戒状态。

　　The U.S. and South Korean militaries are reportedly considering additional retaliatory measures, which include the deployment in South Korea of the U.S. aircraft carrier Ronald Reagan currently in Yokosuka, Japan.

　　据报道，美国和韩国两国正考虑向半岛进一步出动军事力量，其中包括部署在韩国的美军航母里根，目前在日本横须贺。

　　The retaliation also includes the deployment of a U.S. nuclear-powered submarine and F-22 stealth fighter.

　　此次对朝施压的措施还包括美军核动力潜艇和F-22隐形战机的部署。