单词：unsuccessfully
adv. 无用；失败地
r. without success
词性分布：
unsuccessfully的用法和样例：
例句
- He had proposed marriage, unsuccessfully, twice already.他已经两次求婚，均未成功。
- I tried, albeit unsuccessfully, to contact him.尽管未与他联系上，可是我已尽力而为了。
词汇搭配
- unsuccessful不成功的