十年教訓 shíniánjiàoxùn long-term preparation Origin Definitions Defs Strokes Stroke Words Sentences Sents 十 shí numeral ten the number ten; 10年 nián noun year a year or the duration of a year; also used to describe annual or yearly occurrences教训 教訓 jiàoxun noun lesson a lesson or moral learned from an experience, error, or failure