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to delay; to postpone; to put off; to slow down; to hold up; to retard; to put back (a clock)
台風の影響で出発を遅らせた。
I delayed my departure due to the typhoon.
会議の開始を一時間遅らせてほしいと頼んだ。
I asked them to push the meeting start back by an hour.
老化を遅らせる食生活について調べた。
I looked into dietary habits that slow down aging.