HSK 3
Liǎng wèi yǎnyuán de biǎoyǎn jiāoxiānghuīyìng.
The two actors' performances enhance each other.
HSK 6
Gǔlǎo jiànzhù yǔ xiàndài dēngguāng jiāoxiānghuīyìng.
The ancient buildings and modern lighting complement each other brilliantly.
HSK 7-9
Húshuǐ yǔ wǎnxiá jiāoxiānghuīyìng, měibùshèngshōu.
The lake and the sunset glow set each other off beautifully.