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We've economised as much as possible, but to little great avail, since we still owe a lot of money.
我们尽可能节俭, 但没什么用, 因为我们仍然欠了一大笔债.
《简明英汉词典》
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Much to my regret that we have made repeated application for payment amount without avail.
我们多次去函请求结清这笔账款而无任何结果,为此我们非常遗憾.
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