★up to ＜時点＞
A＜時間·程度など》に至るまで（ずっと）（lup until［till］ A は時間の継続を示す強意形；
⇨up to now
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⇨Read up to the end of chapter two.
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Optimized studying based on the forgetting curve vastly improves memorization. - What is reminDO?
Memorize
