That's one instance, so, I would use a downward inflection.

这是一个例子，使用下降语调的例子。

It's moving us towards an inflection point for gender equality.

它带我们一起走向男女平等的转折点。

Your intonation, inflection, your choice of words.

你的语气，音调，还有用词的选择。

And our next word is inflections.

我们的下一个词是曲折变化。

Every inflection point in the investigation.

还有调查中的每一个转折点。

I don't know what Google thinks the inflections are.

我不知道谷歌怎么判断语调的。

He smiled at my inflection. " You know what I mean."

我的声音有些变调，他不禁笑了起来：“你知道我指的是什么。”

And this is not a drill -- it's a point of inflection.

这不是一场演习——而是一个转折点。

And right now, I believe the world is in an inflection point.

现在，我相信世界正处于一个转折点。

I've made it clear that I believe America is at an inflection point.

我已经明确表示，我相信美国正处于一个拐点。