early RNA早期RNAearlyadv.早adj.早Early-Middle Jurassic早中侏罗世early enteric nutrition早期肠内营养Early Birds of Aviation早到的航空导弹early childhood reading早期阅读Early-ripen nectarine油桃early stellar evolution恒星早期演化Early-stage pregnancy早期妊娠early American Republic美国早期共和国early support structure初期支护early thoughts of state早期国家思想