The tricuspid valve has three little flaps, or cusps.

它有三个瓣，或瓣。

Remove the front cusp, raise the shelf, and you've got our human molars.

移除前端，提升牙架，你就得到我们人类臼齿。

You do appear right on the cusp of something.

你在职场上可真是炙手可热。

Over time, the cusps were pushed out of line to make triangular crowns.

随着时间推移，这些端逐渐移位，形成了三角形牙冠。

Well, just back from the cusp.

只要离开波峰就行。

The scientists say it’s on the cusp of a comeback.

而如今他们表示，这次开发可以算得上是上次尝试回归。

The president says the nation's " on the cusp" of fundamentally changing the pandemic's nature.

拜登总统表示，国正处于能够从根本上应对这场疫情" 风口浪" 。

But we're right at the cusp of that, in sort of the domestic cat's evolution.

但我们对整个趋势看法是对，猫猫在人类驯服中发生演变。

We've gone from economic crisis to recovery to the cusp of genuine resurgence

我们已经从经济危机阴影中走出来, 走向了真实复苏顶点。

Mr. Johnson said Britain was on the cusp of a rapid spread that demanded more draconian countermeasures.

约翰逊表示，英国已经处于疫情迅速蔓延风口浪，需采取更为严厉应对措施才行。

Small cusps were then added, so the tooth had three in a row, aligned front to back, and connected by crests.

后来，更端出现，所以一颗牙齿有成排三个头，从前往后排列，并由凹槽相连接。

When I say that we're on the cusp of finally delivering that vision, there's actually reason to believe it.

当我说我们即将实现这样设想。你完全有理由可以相信我。

Pareiasaurs had teeth with lots of little cusps on them, like human molars.

帕雷亚龙牙齿上有很多头，就像人类臼齿一样。

We are on the cusp of so many great discoveries. I absolutely believe this is a fight we can win.

我们在这一领域已经取得重大突破，有很多伟大发现。我坚信我们可以赢得这场战役。

This is prevented by tiny white cords that anchor the cusps to the wall of the ventricle.

这是由细白色绳索阻止，这些绳索将端固定在心室壁上。

We are on the cusp of a revolution.

我们正处于一场革命风口浪。

Because there's so much potential waiting right at the cusp.

因为在风口浪上有太多潜力等待着。

They were on the cusp of winning the first two weeks.

他们在前两周就处于胜利边缘。

Computer scientists say we are on the cusp of an artificial intelligence revolution.

计算机科学家说我们正处于人工智能革命风口浪。

I'm on the cusp of signing that kid.

我准备签这个孩子了。