Feeling sad, the dog tried to explain for itself, "Though I didn't catch it, I had done my best."

狗感到很难过，试图为自己解释：“虽然我没有抓住它，但我已经尽力了。”

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The discoveries also help to explain why children can often have clear memories of what they have done, but then forget them just several years later.

这些发现还有助于解释为什么孩子们经常能清楚地记得他们做过的事情，但几年后就会忘记。

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Focus on something you’ve done that you can’t fully explain the reasoning behind.

要把精神集中在那些你曾做过但无法完全解释背后行为动机的事情上。

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So it turns out that he could have picked anything to explain this, and hopefully done out the calculation, and we'll do this ourselves.

结果是他可能用任何事情,来解释这个说法，有希望完成这个计算，而且我们将自己做这件事。

麻省理工公开课 - 化学原理课程节选

but if you explain it to your friend that you or she should not have or should have done something,

如果你想要向你的朋友解释，或者她应该做某事的时候，

I should have 课堂 - SpeakingMax英语口语达人

Use this pattern in any situation where you want to explain you've done it before.

当你想解释之前已经做过某事的时候，可以在各种情形下使用这个句型。

I've already 课堂 - SpeakingMax英语口语达人

He also acknowledged that more needed to be done to explain the agreement to the public.

BBC: Bank for International Settlements defends Basel III

There is also more work to be done to explain to marketers how marketing works on Facebook, he adds.

FORBES: Social Advertising Now On Majority Of Facebook Page Views

"More could have been done" to explain the benefits and "encourage support" from health professionals, she said.

BBC: NHS: Reform message was screwed up - health minister