自底向上 zì dǐ xiàng shàng 🔊 bottom-up + Keep this word Meanings zì dǐ xiàng shàng bottom-up Its characters 自zìself; oneselfHSK 4底dǐbottom; baseHSK 4向xiàngtowardsHSK 3上shàngon; above; upHSK 1