The second set, which did not have a single break of serve, was overshadowed by an incident which saw Federer come face to face with a court invader at the start of the fourth game.

没有一次破发的第二场，一段小插曲让人多少感到不快。 在第四局的刚开始，费德勒就遭遇一次面对面的闯进球场球迷的侵扰。

youdao

Space Invader was the name of a video game that was very popular in the nineteen eighties.

VOA: special.2009.04.08