问题描述：
根据短句猜英语单词或词组
we often ask for it when we have a problem (6 letters)
at some time in the past ( 4,4,1,4 letters)
the word that begins a letter (4 letters )
we often ask for it when we have a problem (6 letters)
at some time in the past ( 4,4,1,4 letters)
the word that begins a letter (4 letters )
问题解答：
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