而非几个小时
Rather than several hours
以上为机器翻译结果，长、整句建议使用 人工翻译 。
答案竟然已难以追查，事实上，经过几个小时的研究，我只能提前一个似是而非的理论夫妇。
The answer has been surprisingly difficult to track down; in fact, after several hours of research I can only advance a couple of plausible theories.
youdao
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