词汇	母系亲族
释义	母系亲族 mother-sib
随便看	dual-observer dual occupational dual of sheaf dual of tangent space dual oil filter dualomyces bambusicola dualomyces taiwanensis dual one way ranging dual onlay graft Dual Online Packages dual openness dual operation dual-operation dual-operational dual operational amplifier dual operations dual operator dual-oplarization laser dual-opposite conception dual oppositeness dual opposition dual-optic accommodating intraocular lens dual optical path dual optical wavelengths Dual-optic fiber detection