以來 yǐlái HSK3 since Origin Definitions Defs Strokes Stroke Words Sentences Sents yǐlái since 以 yǐ preposition [positional boundary] (bound form) used before words of location or time to indicate a boundary, such as 以后 yǐhòu or 以上 yǐshàng来 來 lái prepositionparticle since Used after a time duration to mean "for the past..." or "ever since"yǐlái and more 以 yǐ preposition [positional boundary] (bound form) used before words of location or time to indicate a boundary, such as 以后 yǐhòu or 以上 yǐshàng来 來 lái around Used after a round number to indicate an approximate amount: around; over; and moreyǐlái from now on 以 yǐ preposition [positional boundary] (bound form) used before words of location or time to indicate a boundary, such as 以后 yǐhòu or 以上 yǐshàng来 來 lái noun future (bound form) Future; coming; next