treaty和convention的区别

　　treaty的例句：

　　The new treaty establishes a free trade zone.

　　新条约设立了自由贸易区。

　　The Treaty has failed to arouse genuine public outrage.

　　该协定并未真正激起公愤。

　　We are feeling our way towards a treaty.

　　我们正试图达到协定。