I confess myself bewildered by their explanation.

我承认他们的解释使我感到困惑。

《牛津词典》

Their explanation of test and procedures.

他们解释测试程序。

youdao

Their explanation was that unrest often erupts when a wealthy middle class is weakened.

他们的解释是当一个健康的中产阶级被削弱后，动荡就会爆发。

youdao

And they didn't put their explanation of what they thought was going on, it just sort of was observing what they saw.

而且他们并没有给出解释,而是仅仅介绍了他们所观测到的内容。

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He believed their explanation that for political reasons the relationship had to be kept secret.

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Part of their explanation is that the universe started with a cosmic explosion, known as the Big Bang.

NPR: New Clue to Universe's Darkest Mystery

We -- I clearly on Saturday did not feel comfortable with their explanation on the possible increase in flow.

WHITEHOUSE: Press Briefing