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词汇
dark matter
释义
dark matter【天文学】暗物质,黑体〔据称宇宙的90%都是由此种不发光的物质组成的〕。dark: adj. 1.暗,暗黑的;微暗的,阴沉的。 2.浅黑的, ...matter: n. 1.物质 (opp. spirit, mind); ...
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secondary emission
secondary evidence
secondary fan
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secondary forest
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secondary planet
secondary protection tube
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secondary sex characteristic
secondary syphilis
secondary union
seconder
secondfiddle
secondly
secondo
secrecy
secret
secret agent
secret ballot
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