The flat-edged cutting part of a sharpened weapon or tool.

He bought a razor with a keen edge.

他买了一把刀口锋利的剃刀.

The cut will not leave any scar.

这刀口不会留下疤痕.

You've come back in the nick of time!

你回来得正是节骨眼上!

At this critical moment reinforcements rushed up.

就在这个节骨眼上,援军赶到了.

When it came to the pinch , he couldn't quite do it.

到了节骨眼上, 他又下不了手.

It is at this point that this history begins.

故事就是在这个节骨眼上开始的.

He was very calm during the crisis.

在这节骨眼上,他非常镇静.

You had to grab him by the nose and twist him.

你得抓住他的要害,狠狠干他一下.

He had hit the nail on the head.

他击中了问题的要害.

Her criticism struck home.

她的批评切中要害.

After all this time he still had new ideas and was game to try them.

过了这么久，他依然不乏新点子并敢于去尝试。

I looked everywhere for ideas.

我到处找点子。

This is the BBC's worst idea yet.

这是到目前为止英国广播公司的最糟糕的点子。

And the usual suspects are doing their best to prevent action.

但是,正如医疗问题一样,在气候变化问题上,症结点在参议院.

Move your eyes quickly overline and look for phrases and key words.

眼睛疾速扫描每行文字,寻觅词组和症结词.

He put his finger on the cause of our financial trouble.

他明确指出了我们财政问题的症结所在.

They are the focus of political discontent and agitation.

他们是政治不满和骚乱的症结所在.

Power transformers are element in power system.

电力变压器是电力系统的枢纽设备之一.

Throughout the process, Wu Jingmao played the key role of the hub.

整个过程中, 吴景茂都扮演枢纽的关键角色.

The target of harbor is to become harbor of international container hub.

上海港的目标是成为国际集装箱枢纽港.