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heretofore
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迄今为止, 至今
up to this time
heretofore
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例子
The company had heretofore followed traditional methods, but now they are embracing innovative approaches.
The research findings revealed information that was heretofore unknown in the scientific community.
The new policy introduced changes that were not heretofore considered by the company.
The artist's latest collection showcases a style heretofore unseen in their previous works.
The technology has advanced beyond what was heretofore thought possible.
