在交点上

在尖端上

on the case───正在做需要做的事情

on the cuff───免费地；赊欠地

on the jump───adv.在忙碌中

on the cheap───便宜地；经济地

on the couch───在沙发上；接受心理分析

on the cross───不光明正大地；对角

on the house───免费；由店家出钱

on the stump───做巡回政治演说

on the bash───喝得兴高采烈，狂饮；寻欢作乐

I am sitting on the cusp of middle age.───我正处于中年。

I was born on the cusp between Virgo and Libra.───我生于室女宫和天秤宫会切的时辰。

He was on the cusp between small acting roles and moderate fame.───他这个配角演员现在已是小荷初露尖尖角。

It was a very different country then, but what was absolutely clear to me was that China was on the cusp of a remarkable transformation.───当时的中国与今天大不相同，但对我来说已经绝对明确的是，中国正处于天翻地覆的大变革的最前沿。

Kate was right on the cusp of a wonderful career, but for a few months, she couldn't get work and had to return to her job at the lunch bar.───凯特恰好正处在一个很好的职业尖峰，但几个月后，她无法工作，并已经返回午餐酒吧工作。

And what I remembered best was that he was as excited to be on the cusp of a big story as I was.───而我对他最深刻的记忆，便是他对于自己能够站在这样一个大事件的尖端，表现得和我一般兴奋。

'It's one of the pillars of U. S. hegemony, ' he said in an interview. 'The signs indicate that we are on the cusp of major change.───他在接受采访时说，这是美国霸权主义的支柱之一，各种迹象显示我们正处于重大变革的风头浪尖上。

It may also be linked to expectations that the U. S. is on the cusp of a change that would make it more agreeable.───也可能跟期望值有关：人们期望美国正处于变革的尖端，可能变得更加令人愉快。

What's more, its orbit was right on the cusp of its star's habitable zone, meaning the planet might have liquid water.───此外，它的轨道正处在其星系宜居带的边缘，意味着液态水可能存在。

They will be on the cusp of puberty.

I am sitting on the cusp of middle age.

He was on the cusp between small acting roles and moderate fame.

The country was on the cusp of economic expansion.

I was born on the cusp between Virgo and Libra.

Archaeologists believe they are on the cusp of shedding new light on the life of William Shakespeare –by digging up what may have been the playwright's cesspit.

On the cusp of restructuring family life, we cling ever more ardently to this antiquated and ill-conceived provider-homemaker design.

Sing Sing seems constantly on the cusp of chaos.

We are living on the cusp of history.