【法】 affinity
benignity; for oneself; parent; relative
a group of things with common features; clan; family; race; strain
【化】 alkaline earths; family; group; odd series; periodic family; sub-group
subgroup
【医】 group; race; series; tribe
relation; relationship; appertain; bearing; concern; connection; term; tie
【计】 relation
【医】 rapport; reference; relation; relationship