英语语法分析

Taking part for the first time was a senior American envoy, Undersecretary of State William Burns.

美国国务次卿伯恩斯首次参加了会议。

So, the presence of Undersecretary Burns at the Geneva meeting was widely seen as a shift in U.S. policy.

所以，美国国务次卿伯恩斯出席日内瓦会议，被普遍视为是美国政策的转变。

So, the presence of Undersecretary Burns at the Geneva meeting was widely seen as a shift in U. S. policy.

所以，美国国务次卿伯恩斯出席日内瓦会议，被普遍视为是美国政策的转变。