had you helped us
如果你帮助了我们
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Had you helped us, we should have canceled this transaction.
假如没有你的帮助，我们这笔交易早就告吹了。
youdao
Had you not helped us, we should have canceled this transaction.
假如没有你的帮助，这笔生意早就告吹了。
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