The X-15 flew upward with unbelievable power.

VOA: special.2010.07.07

This -- "Damon's Epitaph" ends with a virtual orgasm of Christian consolation as Milton gives his best friend the most unbelievable sendoff that is possible to give.

这--在《达蒙的墓志铭》的结尾,弥尔顿给了他最好的朋友他所能给的最不可思议的送别礼,是真实的肉体的欢愉，同时却又是基督教的慰藉。

耶鲁公开课 - 弥尔顿课程节选

And what they found remarkably was significant similarities among these twins, sometimes to the points of unbelievable.

发现了一个明显的现象,这些双胞胎极其相似，有时相似之处非常惊人。

哈佛公开课 - 幸福课课程节选

"The user friendliness on the IPhone is unbelievable. It's like even a layman can use it."

VOA: standard.2010.06.25

Forward Charlie Davies was pleased with the victory. "For the team it's unbelievable,"

VOA: standard.2009.06.24