Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
天气太冷,孩子们的手脚都冻得通红。Tiānqì tài lěng, háizimen de shǒujiǎo dōu dòng de tōnghóng.It was so cold that the children's hands and feet were frozen red.
他做事手脚麻利,不一会儿就把屋子收拾好了。Tā zuò shì shǒujiǎo málì, bú yíhuìr jiù bǎ wūzi shōushi hǎo le.He works quickly and deftly, and tidied up the room in no time.
冬天他手脚冰凉,妈妈总让他先暖暖手。Dōngtiān tā shǒujiǎo bīngliáng, māma zǒng ràng tā xiān nuǎnnuan shǒu.In winter his hands and feet are icy cold, so his mother always tells him to warm them up first.