词汇	ch4
释义	ch4 =methane 甲烷,沼气,重链恒定区4
随便看	category description category design category dimensionality category discriminating word Category disposition category dissipation category distance category distinguishing category D noxious liquid substance category dominated by physical ability category dummy category dummy variable category effect category entity category entropy category extension category feature category-feature database category-feature weight vector model category filter templates category floods category forecasting Category for Staffing Format category grammar category grmmar