词汇	边缘群体
释义	边缘群体 marginal population
随便看	simple objects simple obligation simple obstacle simple ocellus simple ocular simple odontoma simple of value simple ointment simple Ointment simple olefin simple one-constituent bed simple one way chain simple one-way chain simple onychia simple open-wire line Simple operation and easy maintenance simple optic atrophy simple optometer simple or compound simple or compound vowel simple or compound vowel of a Chinese syllable simple order simple ordering simple ordering of state probabilities simple ordering of values