星期天他来找我,偏偏我不在家。
He came to me on Sunday, but I was not at home.
xīngqītiān tā lái zhǎo wǒ,piānpiān wǒ bù zài jiā 。
Expressing "contrary to expectations" with "pianpian"
A, Subject + 偏偏 + B
Spaced repetition is a study technique that schedules reviews right before you're likely to forget something. Cards you know well are shown less often; cards you struggle with come back sooner. It's the same underlying method Anki popularized, and the one Decks uses.
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Decks ships curated decks for Japanese, Chinese, Spanish, and French, covering everything from writing systems (hiragana, katakana) to grammar (HSK, Tae Kim's guide) to vocabulary and full sentences. You can also build decks for any other language or subject.