This attitude adjustment can be especially challenging.

这种态度的调整可能特别具有挑战性。

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Quality in software engineering is especially challenging because it is so difficult to measure

特别是，软件工程中的质量正在面临挑战，因为它极其难以度量。

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A minimalist design layout is especially challenging because every element with which you are working, is essential.

极简设计的布局是相当的具有挑战性，因为你所用的每个元素都很重要。

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That can seem especially challenging in small towns, which have scarce resources and limited alternatives.

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And, of course, deployments are especially challenging for children and other family members left behind.

WHITEHOUSE: Remarks of Dr. Jill Biden at the OJJDP National Conference

Yet experts warn that succeeding in entrepreneurship can be especially challenging for seniors.

WSJ: Starting a Business Later in Life