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morning and evening
all the time; always; every day; day and night
この薬は朝晩服用します。
This medicine is to be taken morning and evening.
秋が深まり、朝晩はかなり冷え込みます。
As autumn deepens, it gets quite chilly morning and evening.
祖母は健康のため、朝晩の犬の散歩を欠かしません。
For her health, my grandmother never misses walking her dog morning and evening.