a bold/daring attempt 大胆的尝试；
a brave attempt 勇敢的尝试；
a further attempt 更进一步的尝试。
例句：
The story was an attempt to smear the party leader.
这篇报道企图玷污该党领袖的声誉。
Someone has made an attempt on the President's life.
有人企图刺杀总统。
The couple made an unsuccessful attempt at a compromise.
这对夫妇试图和解但未成功。