素质 sùzhì inner quality
inner quality; basic essence
How to remember 素质: 素 plain + 质 essence = inner quality.
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How it is used
- One's inner quality / calibre - character, manners, competence - 提高素质 (tígāo sùzhì) raise one's quality, 心理素质 (xīnlǐ sùzhì) mental fortitude.
- About the essential qualities of a person (moral, cultural, professional); 没素质 (méi sùzhì) means 'ill-mannered/uncultured'.
- Common in education and social-behavior talk; false friend - not 'quality' of a product (质量 zhìliàng).