After several unsuccessful attempts to get him into the raft he was winched back up to the helicopter.几次试图把他放到橡皮艇上未果后, 他被拉回了直升机上。

a second unsuccessful operation on his knee他第二次失败的膝盖手术

They mounted an unsuccessful campaign to have Lewis reinstated.他们发动了让刘易斯复职的运动, 但是失败了。

There were reports last month of unsuccessful negotiations between guerrillas and commanders.上个月有报道称游击队和军方首脑之间的谈判失败了。

His efforts were unsuccessful.他的努力失败了。

The difference between successful and unsuccessful people is that successful people put into practice the things they learn.成功者与失败者的区别在于成功者能够学以致用。

He was unsuccessful in getting a job.他没找到工作。