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题目内容
（兰州工业学院大学英语3）
She spent the next 10 years taking in washing, _________to pay back the money they had borrowed from the bank.
A、counting down
B、tighten her belt
C、refraining from
D、slaving away
E、程度：难
A、counting down
B、tighten her belt
C、refraining from
D、slaving away
E、程度：难
参考答案