Protocal No.l

• 第一议定书

Protocal No.l的用法和样例：

例句

1. The US is the only major industrialized country that did not ratify the protocal although it emits more greenhouse gases than any other countries.
   美国是唯一一个没有认可京都议定书的发达工业化国家，但是其温室气体的排放量比任何国家都要多。