英语语法分析

The 2nd trilateral meeting was held in Beijing in 2009.

第二次中日韩领导人会议2009年在北京举行。

Mr Medvedev has invested time and effort in what will be his fifth trilateral meeting.

梅德维杰夫先生在他的第五个三方会谈中花费了许多时间精力。

Second, to reinforce complementary advantages and upgrade the level of trilateral cooperation.

第二，加强优势互补，提升三国合作水平。