general secretary和secretary general有何区别?

general secretary和secretary general两者都可做秘书长讲,表达“总书记”时只能用general secretary；表达“联合国秘书长”时只能用secretary generalgeneral secretary总书记；秘书长This afternoon,General Secretary *** （name）will have talks with him and NPC Chairman Wu Bangguo will meet with him.
下午,***总书记将和阮富仲总书记进行会谈,吴邦国委员长也将会见阮富仲总书记.
Does it relate to the visit by General Secretary Kim Jong Il?
这次访问与上次金正日总书记访华有关系吗?
General secretary of Tianjin Anatomy Society .The member of China Anatomy Society.
现任天津市解剖学会秘书长,中国解剖学会会员
secretary general（联合国）秘书长
I want to thank the Secretary General for organizing this summit,and all the leaders who are participating.
我对组织这次首脑会议的联合国秘书长以及在座的各位领导人表示感谢.
The Secretary - General's actions were subsequently unanimously approved by the General Assembly.
秘书长的这一行动后来得到大会一致的赞同.