Mr . lilley replaces mr . charles t . cross who has resigned from ait 李洁明系接替已辞职的葛乐士的职务。
2.
Mr . lilley is a graduate of yale university and has a master s degree from george washington university 李洁明毕业于耶鲁大学，并获有乔治华盛顿大学的硕士学位。
3.
Since february 1981 mr . lilley has served as the policy coordinator and china advisor to the national security council staff 自一九八一年二月以来，李洁明即一直担任美国国家安全委员会的政策协调人和中国事务顾问。
