Je was op zoek naar: it is difficult to answer (Engels - Chinees (Vereenvoudigd))

it is difficult to reach him.
很难与他联系上。

he is difficult to be
难得他是

also, it is difficult to protect them.
同样，很难保护他们。

it is difficult to meet these requirements.
难以满足所有这些规定。

however, it is difficult to generalize it.
然而，普遍采用这一标准有困难。

it is difficult to cater to all tastes
众口难调

it is difficult to agree with this contention.
人们很难同意这种观点。

all too often, it is difficult to disagree.
这种观点常常让人很难不同意。

it is difficult to categorize the present conflict.
18. 难以把当前的冲突归类。

20. it is difficult to operationalize policy coherence.
20. 协调政策很难付诸实施。

it is difficult to contest its relevance or topicality.
该题目的实用性及其现实意义难以置疑。

however, this is difficult to measure.
然而这一方面也很难衡量。

it is difficult to establish the truth of such accusations.
这些指控的真相很难确定。

hence, it is difficult to distinguish migrants from travellers.
因此，很难区分移徙者和旅行者。

it is difficult to come to terms with this painful event.
这一令人痛苦的事件让人难以接受。

actually, it is difficult to see the justification for such subtleties.
实际上,很难明白这种奥妙差别的理由。

and furthermore it is difficult to consider the two subjects separately.
而且也很难分别考虑这两个问题。

in the current circumstances it is difficult to assess their impact.
在目前情况下，很难评估这些文书的影响。

(a) it is difficult to establish the additionality of pledged aid.
很难确定承诺援助的额外增加金额。

it is difficult to codify rules governing varied situations of this kind.
针对诸如此类的不同情况编纂若干规则是很困难的。