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only ...; no more than ...; a matter of
始めて物の数分で問題が起きた。
A problem occurred in only a few minutes after starting.
物の一時間で全ての作業が終わった。
All the work was finished in no more than an hour.
歩き始めて物の五分で雨が降り出した。
It started raining just five minutes after I began walking.