Relentless in his pursuit of quality, his technical ability was remarkable.

由于对质量的坚持不懈的追求，他的技术能力非同凡响。

《柯林斯英汉双解大词典》

Americans are deeply concerned about the relentless rise in health care costs and health insurance premiums.

美国人对医疗费用和健康保险费用的不断上涨深感担忧。

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A portrait type that appeared with relentless frequency in eighteenth-century England is the familiar image of a gentleman poised with one hand inside his partially unbuttoned waistcoat.

18世纪英国出现频率极高的一种肖像类型，是人们熟悉的绅士单手插在部分没有扣子的马甲里的形象。

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Alexander chronicles those experiences in his book,"52 Loaves: One Man's Relentless Pursuit of Truth, Meaning and a Perfect Crust."

VOA: standard.2010.07.16

Aid groups say 23 million people face starvation in East Africa because of a relentless drought some scientists say may be a result of climate change.

VOA: standard.2009.11.04

Amid all the career advice exhorting workers and job seekers to engage in relentless self-promotion, is there any room for that most traditional and modest of virtues, humility?

FORBES: In Praise Of Humility At Work

Most perish almost instantly in the relentless battle for scarce shelf-space in Japan's small shops.

ECONOMIST: Consumer goods

In this relentless experimentation, they take the past and push it very firmly forward to the future.

NPR: The Sounds of Finnish Musical Experiments