In 2010 , biogen ceo james mullen retired at the age of 51 .
2010年，百健艾迪51岁的首席执行长穆伦（jamesmullen）退休。
Admiral william mullen , outgoing chairman of the joint chiefs of staff , has described the national debt as the greatest threat to us national security .
马伦（admiralwilliammullen）曾将美国的债务描述为对国家安全的头号威胁。
Admiral mike mullen , the chairman of the joint chiefs of staff , has said that the biggest threat to us national security is the budget deficit .
A few days after the violence spiked on feb 17 , mr. obama had asked adm. mike mullen , the chairman of the joint chiefs of staff , to craft military options for libya .
Adm. michael mullen , the chairman of the joint chiefs of staff , arrived in seoul on wednesday morning for discussions with south korean officials on how to respond to future attacks by pyongyang .
