This is not to deny the existence of a problem in predicting peaks.
这是不在预测顶峰方面否认一个问题的存在。
The existence of black and white contract is an open secret in the construction market, and is also a tough problem in the contract management.
黑白合同的存在是建设工程市场公开的秘密，也是合同管理中一个棘手的问题。
The existence of black and white contract is an open secret in the construction market, and is also a tough problem in the contract management.
黑白合同的存在是建设工程市场公开的秘密，也是合同管理中一个棘手的问题。
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