一番速い新幹線はどれですか？ いちばんはやいしんかんせんはどれですか？ イチバンハヤイシンカンセンワドレデスカ？ Which bullet train is the fastest?
Japanese
Optimized studying based on the forgetting curve vastly improves memorization. - What is reminDO? Memorize
cowpoke
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