throw-back

n animal, etc that shows characteristics of an ancestor earlier than its parents 有返祖现象的动物等. Cf 参看 atavism.

throw doubt upon, throw in, throw light on, throw light on sth., throw litter, throw off, throw oneself at sth/sb, throw oneself into sth, throw oneself on sb/sth, throw over, throw sb back on sth, throw sb out, throw sb over, throw sb together, throw sth away, throw sth in, throw sth off, throw sth up, throw up, throw-away, throw-in, throw/cast light on, throwback, thru, thrush, thrust, thruster, thud, thug, thuggery, thumb, thumb-index, thumb-nail, thumb-stall, thumb-tack, thumbnail, thumbscrew, thumbtack, thump, thumping (also thundering),