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soon; shortly; before long; in a short time; in a little while
having no time to ...; with no time to ...
まもなく電車が到着しますのでお待ちください。
The train will arrive shortly; please wait.
まもなく会議が開始される予定だ。
The meeting is scheduled to start soon.
彼が出発してまもなく雨が降り出した。
It started raining shortly after he left.