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).

metallurgy, metalwork, metalworker, metamorphose, metamorphosis, metaphor, metaphorical, metaphorically, metaphysical, metaphysics, metatarsus, mete, meteor, meteoric, meteorite, meteorological, meteorologist, meteorology, meter, methadone, method, methodical, methodically, Methodism, Methodist, methodological, methodologically, methodology, meths, methyl alcohol, methylated, methylated spirits, meticulous, meticulously, meticulousness, metier, metre, metre (US meter), metric, metric ton,