遗憾

regret; pity; tragedy; remorse; lament; compunction; it's a pity; it's a shame; be sorry; feel sorry about; feel remorseful about; rue; rue the day; sorry; bad; regretful; regrettable; unfortunate; rueful; regrettably; unfortunately; sadly; too bad; with regret; with disappointment

作文

composition; theme; essay; paper; write an essay; compose a written piece; do a composition