CNN news 2010-05-06 加文本

1.We just happen to come down here, when just really to take a picture and then they were bringing the first boat in.

happen to碰巧

例句：A militiaman happened to notice the rascal.
      一位民兵偶然注意到了这个坏家伙。

2.Also, this morning we are keeping a close eye on the failed car bombing in New York’s Time Square.

keep a close eye on照看, 留心瞧着, 注意

例句：We should keep a close eye on new technology.
       我们应该密切新技术。