问题描述：
1.a minus b,into three times c.2.a,minus three times b into c.
3.a plus b,divided by three c.4.a ,plus b divided by three c
请问这些题目的中文意思是什么?
3.a plus b,divided by three c.4.a ,plus b divided by three c
请问这些题目的中文意思是什么?
问题解答：
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