支柱 zhīzhù HSK7 pillar Origin Definitions Defs Strokes Stroke Words Sentences Sents 支柱产业 zhīzhùchǎnyè pillar industry a mainstay or key industry that supports and drives economic growth精神支柱 jīngshénzhīzhù spiritual pillar spiritual pillar; moral support or a person or belief that provides the strength to keep going