The leader of North Korea has ordered what he's called an exponential expansion of the country's weapons-grade nuclear material.

朝鲜领导人下令大幅扩增该国的武器级核材料。

Kim Jong Un made the comments during a visit on Wednesday to a newly operational nuclear production factory.

金正恩周三参观一座新投入运营的核生产工厂时发表了上述言论。

It's estimated North Korea currently has about 15 nuclear warheads.

据估计，朝鲜目前拥有约15枚核弹头。

A new study of satellite images has found that mangroves are showing signs of recovery after decades of destruction.

一项对卫星图像的新研究发现，红树林在经历了数十年的破坏后正显示出恢复的迹象。

The tropical and subtropical forests had been threatened by fish farming in urban development.

这种热带和亚热带森林受到了城市发展中养鱼业的威胁。

Now researchers say conservation efforts and natural expansion have seen the world gain more mangroves than it has lost.

现在研究人员说，人类的保护工作和自然扩张已经看到世界新增的红树林比失去的更多。

In tennis, the world number 114, Poland's Maja Chwalinska has made French Open history by becoming the first qualifier to go all the way to the final.

在网球方面，世界排名第114位的波兰选手马娅·奇瓦林斯卡成为第一个进入决赛的预选赛选手，创造了法网公开赛的历史。

She spoke to reporters ahead of Saturday's title decider.

她在周六的冠军决胜局之前接受了记者采访。

I honestly don't know what was going on in my head. I was just in such a shock, you know.

我真的不知道我脑子里在想什么。我当时太震惊了。

Just I don't know, joy, surprise, so many emotions, you know.

我不知道，喜悦，惊喜，太多的情绪，你懂的。

So I was just very, I feel like overwhelmed also.

我只是非常，感觉有些不知所措。

Chwalinska beat the Russian Diana Schneider in straight sets who praised her opponent's playing style.

奇瓦林斯卡连续两局击败了俄罗斯选手戴安娜·施奈德，后者赞扬了对手的比赛风格。

She moves incredible on the court. She covers a lot.

她在球场上的表现令人惊叹。她的防御范围很大。

She reads the game very well, even if you think that you want a point, she's there.

她对比赛的理解非常好，就算你以为自己要得分，结果却被她接住了。

She's returning that ball, but not just returning like where you can attack, but she's returning it very uncomfortable for you.

她会把球打回来，而且不是打在你可以进攻的地方，她打回来的球让你很难接。

Hollywood has spent the week celebrating 100 years since the birth of Marilyn Monroe, with auction houses also profiting.

好莱坞用了一周的时间庆祝玛丽莲·梦露诞辰100周年，拍卖行也从中获利。

Julian's Auction sold more than a hundred personal items, including a used hot pink lipstick for more than $12,000.

朱利安拍卖会售出了一百多件梦露的个人物品，其中包括一支用过的亮粉色口红，拍卖价超过12000美元。

That's the latest BBC news.

这是最新的BBC新闻。

本文来自公众微信号：可可英语