early sign早期标志earlyadv.早adj.早early period of modernization早期现代化early development of children儿童早期发展early-alert and orientation预警定位Early-maturing summer maize早熟夏玉米early-maturing combinations早熟组合Early bird catches the worm.早起的鸟先捉到虫子。Early-maturing upland cotton早熟陆地棉Early onset of pre-eclampsia早发型子痫前期early anti-cracking behavior早期抗裂性Early Warning Satellite System预警卫星系统