The International System has base units from which all others in the system are derived.
国际轨制有根基单位，由此衍生出此轨制中的其他单位。
Scientific literacy is the aim of science education, from which science teaching objectives are derived.
科学素养是科学教育的目的和出发点。
Scientific literacy is the aim of science education, from which science teaching objectives are derived.
科学素养是科学教育的目的和出发点。
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