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单词
methane
释义
methane n[U] (also marsh gas) odourless, colourless, inflammable gas that occurs in coalmines and in marshes 甲烷; 沼气. Cf 参看 firedamp (fire1).
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rhythm method
RI
rib
ribald
ribaldry
ribbon
ribbon development
rib-cage
riboflavin
rib-tickling
rice
rice-paper
rich
riches
richly
richness
Richter scale
rick
rickets
rickety
rickshaw
ricochet
rid
riddance
ridden
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更新时间:2026/8/6 10:43:17