Giving a speech in front of your class can be challenging.

在你的班级面前演讲是具有挑战性的。

youdao

As a leader, it can be challenging to create an environment in which people will freely disagree and argue, but as the saying goes: From confrontation comes brilliance.

对于一个领导者而言，创造一个让人们可以自由表达异议和主张的环境是很有挑战性的，但正如俗话所说——冲突之下，必有精彩。

youdao

Saying "No" to our favorites can be challenging.

对我们喜欢的东西说“不”会很有挑战性。

youdao

In a brief statement from the White House, Mr.Obama stressed this will be a complex and challenging operation.

VOA: standard.2010.01.13

In any case, whatever one makes of those examples, Machiavelli seems to be challenging important aspects of the classical conceptions that we've been talking about up to this point.

不管人们如何理解这些例子，马基雅维利似乎正在挑战,我们至此一直在讨论着的古典概念的,重要方面。

耶鲁公开课 - 政治哲学导论课程节选

because school can be really challenging and stressful,

因为学校的学习很有挑战性也很有压力，

百慕大出身 - SpeakingMax英语口语达人

He points out, moreover, that feeding a 24-hour network could be challenging for ADV.

FORBES: Why Grow Up?

However, on the revenue side, the macro-environment continues to be challenging for our businesses.

FORBES: TheStreet Hits Potholes: Revs Slide, Div Suspended, Shrs Off

Anyone who has ever packed for a trip knows that it can be challenging.

FORBES: Prepare For Meetings Like You're Packing For A Trip