A hard hat for an extremely hard head.

这顶安全帽送给你这个顽伙。

'Humble' worm saliva can break down tough plastic.

“谦虚”蠕虫唾液可以分解顽塑料。

This phenomenon can help eradicate stubborn blood cancers.

这个现象能帮助患者清除顽血癌细胞。

Mixed with obdurate pride and steadfast hate

顽傲气和难消憎恨交织着。

Tough plastics — ones that are difficult to break down — difficult to destroy.

顽塑料——难以分解塑料——难以破坏。

Club soda works wonders on pet urine and other tough stains.

苏打水对宠物尿和其他顽污渍有奇效。

I said no because I knew where I was going.

，“你是个姑娘。顽伙。

Excuse me. I'm a bit of a stickler Meeseeks.

不好意思 但是我是个比较顽使命必达先生。

The mental circuit that connects effort to morality can be a stubborn one.

将努力与道德联系起来心理回路可能是一个顽回路。

It was in vain to argue with him, for he was a very obstinate man.

与他争辩是徒劳，因为他是个非常顽人。

I was wrong. Ilse was a stubborn 78-year-old force of nature.

我错了。伊尔丝是一位顽有自然之力78岁老太。

It differs from a strategic weapon, which is designed to destroy cities and hardened military targets.

这种武器与旨在摧毁城市和顽军事目标战略核武器不同。

Luckily back in the 1980s we still had antibiotics that worked against some of these really bad bacteria.

幸运是，回到20世纪80年代，我们仍然有一些可以对付一些顽细菌抗生素。

But the light indicates... Don't bother. I've wasted many an hour tilting at that particular windmill.

但如果灯亮了就明...不用费心了。我已经浪费太多时间攻击这座顽风车了。

A hardened criminal, a hardened criminal, a hardened criminal.

顽罪犯, 顽罪犯, 顽罪犯。

But we do it, cause we need to, especially if we're trying to lose that stubborn weight.

但我们都会锻炼，因为我们需要。特别是，当我们需要减掉我们顽体重时。

Researchers at Cardiff University are looking to see if honey could help tackle some of the most stubborn infections.

卡迪夫大学科研人员正在研究蜂蜜是否有助于对抗一些最顽感染。

Well we guess it all depends when a wooly stubborn flock, flocks to a " residence" .

嗯，我们猜这一切都取决于一群毛茸茸顽羊群，成群结队地到一个“住所”。

When students were no longer around old environments and routines, their habits, even the strong ones, significantly changed.

当学生不再生活在旧环境和习惯之中时，他们习惯，即使是很顽习惯，也会发生显著变化。

Again the stubborn bull essayed to scramble to his feet.

顽公牛再次试图爬起来。