短语讲解：

1.He sent two negotiators with no international diplomatic experience to meet with both sides.

meet with 碰到; 偶然遇到; 遭受
例句：Now I meet with fewer difficulties in my work.
现在我工作中困难少些了。

2.Also taking part was Jason Greenblatt, an assistant to the president in charge of international negotiations.

in charge of 主管，负责; 照料
例句：He is in charge of the school work.
他负责学校工作。

3.The Camp David Accords led to a formal peace treaty signed between the two nations in 1979.

lead to 导致; 把…带到; 领到
例句：Economic models often lead to the study of systems of equations.
经济模型经常导致对方程组的研究。