Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
他的文字功底很深,复杂的议题也能写得清楚而克制。Tā de wénzì gōngdǐ hěn shēn, fùzá de yìtí yě néng xiě de qīngchu ér kèzhì.His writing skills are very solid, and he can handle complex issues clearly and with restraint.
她的钢琴功底很扎实,学新曲子特别快。Tā de gāngqín gōngdǐ hěn zhāshi, xué xīn qǔzi tèbié kuài.Her piano foundation is very solid, so she learns new pieces especially fast.
画画没有功底,再好的想法也画不出来。Huà huà méiyǒu gōngdǐ, zài hǎo de xiǎngfǎ yě huà bù chūlái.Without a solid grounding in drawing, even the best idea cannot be put on paper.