nieustępliwy 用英语:

I was relentless in my pursuit

The situation will be particularly difficult because of the relentless population increase here.

a patient but relentless taskmaster

relentless efforts

a relentless fighter of evil

there is nothing we can do to stopthe relentless growth of social networking on the internet

relentless criticism/pressure

She told them he was relentless, the husband who always got his way.

"I have been relentless in trying to win the House back."

Her relentless determination to succeed surprised everyone.

relentless fight against crime

her relentless pursuit of perfection; a relentless enemy

after the massive and relentless housing construction...

To the public, this seemed like a relentless defense of order.

the relentless pursuit of wealth and power

his unyielding faith

the Atlantic hurled its waves at the unyielding rocks

And I would not be standing here tonight without the unyielding support of my best friend for the last 16 years, the rock of our family, the love of my life, the nation's next first lady, Michelle Obama.

Oliwia is a tenacious person.

2 a: persistent in maintaining, adhering to, or seeking something valued or desired <a tenacious advocate of civil rights> <tenacious negotiators> b: retentive <a tenacious memory>

"You have to be really tenacious," she said of her learning experience.

There has been tenacious local opposition to the new airport. The baby took my finger in its tenacious little fist.

He's a tenacious guy who always manages to come out on top. He's the kind of guy who can turn any situation to his advantage.

To survive in a hostile environment, one must be able to improvize and be tenacious.

You're tough.

He won't be easily discouraged, because he's a tough guy.

He seems like a softy on the surface, but at the core he's got an iron will that makes him an extremely tough negotiator.

The heart itself is nothing more nor less than a large, tough, leather-like muscle.

It must be nice having someone who sticks around even when times get tough.

1. A customs officer was asking him lots of tough questions. / 2. Tough luck!

Whoo! Today's practice is tough - much harder than usual.

After having spent so much money on Christmas gifts, she found herself in a tough spot.

You should invest a little bit of your income into your career in these tough economic times.

No sooner had we finished working on one tough problem than the president sent us yet another straight from the top.

I'm sure it's tough taking part in the activities of two clubs, but good luck!

Work on the boat is tough but I can't see myself in any other profession.

The surgeon remarked that his patient was tough and that he should make a full recovery with no aftereffects.

It was a tough job. They asked some tough questions. Recently she’s had a tough time. It’s tough being married to a cop.

Earth we're finding that life in very primitive form exists in the most extreme environments, these are the so called 'extremophiles' that exist at the bottom of the oceans... So life is much, much tougher.