HSK 4
Lièchē jiànjiàn yuǎnqù, xiāoshī zài dìpíngxiàn shàng.
The train gradually receded and disappeared over the horizon.
HSK 5
Tóngnián de shíguāng yǐjīng yuǎnqù, zhǐ shèngxià móhu de jìyì.
Childhood days have long receded, leaving only hazy memories.