It was difficult to explain the problem to beginners.
对初学者解释这个问题很难。
He went to great pains to explain the problem to us.
他费了很大劲向我们解释那个问题。
I had to explain the problem to her several times before the penny finally dropped.
那问题我给她解释了好几次，最后她才明白。
Read the conversation and explain the problem in your own words.
阅读对话并且用自己的话解释问题。 老师：好，大家，现在开始！
I can't even explain the problem to my colleagues, never mind anyone else.
我对同事也无法把这个问题解释清楚，更不用说对其他人解释了。
I can't even explain the problem to my colleagues, never mind anyone else.
我对同事也无法把这个问题解释清楚，更不用说对其他人解释了。
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