Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
司机一开动汽车,孩子们就唱起歌来。Sījī yì kāidòng qìchē, háizimen jiù chàng qǐ gē lái.As soon as the driver started the car, the children began to sing.
工人们按下按钮,开动了那台大机器。Gōngrénmen àn xià ànniǔ, kāidòng le nà tái dà jīqì.The workers pressed the button and started the big machine.
火车慢慢开动,站台上的人挥手告别。Huǒchē mànmàn kāidòng, zhàntái shàng de rén huīshǒu gàobié.The train slowly pulled away, and the people on the platform waved goodbye.