Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
潮湿的海风让栏杆很快生了锈,安全部门不得不提前更换。Cháoshī de hǎifēng ràng lángān hěn kuài shēng le xiù, ānquán bùmén bù dé bù tíqián gēnghuàn.The damp sea wind made the railings rust quickly, so the safety department had to replace them ahead of schedule.
雨水太多,铁门很快长满了锈。Yǔshuǐ tài duō, tiěmén hěn kuài zhǎngmǎn le xiù.There was too much rain, and the iron gate quickly became covered in rust.
这把刀不用就锈了,磨一磨还能用。Zhè bǎ dāo bú yòng jiù xiù le, mó yi mó hái néng yòng.This knife rusted from disuse; sharpen it a bit and it can still be used.