问题描述：
Write the following words in Column A according to their explanation in Column B
Column A ColumnB
1.___________________ not formal
2.___________________ make a summary of sth
3.___________________ very tired
4.___________________ make sth.for special purpose
5.___________________ cause oneself to suffer
Column A ColumnB
1.___________________ not formal
2.___________________ make a summary of sth
3.___________________ very tired
4.___________________ make sth.for special purpose
5.___________________ cause oneself to suffer
问题解答：
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