HAS BEEN A CHALLENGE in Chinese Translation

London has been a challenge.

哥本哈根》是个挑战。

Reaching into the village has been a challenge.

到达村庄是一个挑战.

And this has been a challenge for the mayor.

这对市长也是一个挑战。

The switch to digital has been a challenge.

数字化转型是一项挑战。

It has been a challenge, writing a book about this.

这是一个挑战,写这本书。

Recently this has been a challenge.

不久前，这是一个挑战。

It has been a challenge and a learning process.

这是一个挑战，也是一个学习过程。

For ARCH, Sandy Yin has been a challenge.

对扈耀之来说，田福贤是个挑战。

But gaining entry to locked apartments and buildings,even with owners' permission, has been a challenge.

但是，即便获得了业主的许可，要进入上锁的公寓和建筑也是一个挑战。

Deep learning has been a challenge to define for many because it has changed forms slowly over the past decade.

深度学习对于许多人来说是一个挑战，因为它的形式在过去十年中逐渐发生了改变。

But adapting to the environment has been a challenge.

但环境的改变也是一个挑战。

Deep learning has been a challenge to define for many because it has changed forms slowly over the past decade.

如何定义深度学习对许多人来说是一个挑战，因为在过去十年，深度学习的形式都在缓慢地发生变化。

For both kind of students, the exam has been a challenge.

对于每个学生来说，考试都是一种挑战。

It has been a challenge to evaluate the performance of TOD but big data of shared-bike trips now enables benchmarking and comparative analysis.

评估TOD绩效一直具有挑战性，但现在共享单车骑行大数据使设定初始基准和比较分析成为可能。

Understanding those signals, however, has been a challenge.

但是了解这些特征向我们提出了挑战。

Silva admitted the punishing fixture schedule has been a challenge for his players but is confident they can dig deep against Claude Puel's men.

席尔瓦承认，对于他的球员来说，英超的圣诞魔鬼赛程一直是一个挑战，但球员相信他们可以有效地对付克劳德普埃尔的球员。

However, enforcement of this legislation has been a challenge.

然而，这项法律的执行是一个挑战。

Securing timely access to newly displaced people has been a challenge, but by late March, over 130,000 people had been reached.

及时援助新近流离失所的人是一个挑战，但是到3月底，有130000多人已得到援助。

However, extracting gold from the ore produced by these mines has been a challenge.

但是，如何将黄金从这类矿石中提炼出来一直是个难题。

Finding evidence for supermassive black hole binaries has been a challenge for astronomers.

寻找超大质量双黑洞系统的证据对天文学家来说是一个挑战。

For Border Patrol officials,finding enough of those humans to staff their agency has been a challenge.

对于边境巡逻官员来说，找到足够多的这些人来为他们的机构工作一直是个挑战。

While it sounds easy,the ability to lift soft textiles has been a challenge for clumsy robotic arms.

虽然这听起来很简单，但是柔软的纺织品对于笨拙的机械手来说是一个挑战。

Because many FLDS members share similar names and have complicated family relationships,identifying all of the children taken into custody has been a challenge.

因为许多FLDS成员有着相似的名字并且有着复杂的家庭关系，因此确定了所有的孩子被拘留一直是一个挑战。

The current bull market so far hasseen the dollar rise 35 percent, which has been a challenge for gold, commodities and U.S. exports.

到目前为止的牛市，美元上涨了35%，这对黄金、大宗商品和美国出口是一个挑战。

But finding a reference thermometer that is accurate,repeatable and robust has been a challenge.

但是寻求一款准确度高、重复性好且坚固耐用的标准温度计一直是个难题。

The need to rapidly recruit highly skilled andexperienced staff has been a challenge for the agency," FDA writes.

快速招募高技能和经验丰富的员工的需求对该机构来说是一个挑战，”FDA写道。

Turning that information into a successful treatment, however, has been a challenge.

然而，将这些信息转化为成功的治疗是一个挑战。

Weyerhaeuser Co. chief executive DoyleSimons said that availability of transportation services has been a challenge, especially in the past quarter.

惠好公司首席执行官DoyleSimons上周五表示，运输服务的可用性一直是个挑战，尤其是在上季度。

But getting these drugs into the cartilage has been a challenge.

但将这些药物植入软骨一直是一个挑战。

North Korea's flaunting of United Nations sanctions in the past--including missile and nuclear tests-- has been a challenge to the relationship.

朝鲜过去罔顾联合国制裁，包括试射导弹和进行核试验，这些行为对中朝两国的关系一直是个挑战。