在于 zàiyú HSK4 lie in Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: be up to All meanings 20 zàiyú 20 lie in 19be up to 1 1 sentence for 在于 (zàiyú — be up to) 去还是不去,完全在于你自己。 qù háishi bù qù, wánquán zàiyú nǐ zìjǐ. Whether to go or not is entirely up to you. Source: Dong Chinese Dictionary