Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
山路被暴雨冲开,泥水沿着台阶往下淌。Shānlù bèi bàoyǔ chōng kāi, níshuǐ yánzhe táijiē wǎng xià tǎng.The mountain path was torn open by the rainstorm, and muddy water flowed down the steps.
汗水顺着他的脸颊不停地往下淌。Hànshuǐ shùnzhe tā de liǎnjiá bùtíng de wǎng xià tǎng.Sweat kept streaming down his cheeks.
雨水从屋檐往下淌,打湿了他的肩膀。Yǔshuǐ cóng wūyán wǎng xià tǎng, dǎshī le tā de jiānbǎng.Rainwater flowed down from the eaves and soaked his shoulder.