abortive

adj.无效果的，失败的

abnormally, Abo, aboard, abode, abolish, abolition, abolitionism, abolitionist, abominable, Abominable Snowman, abominably, abominate, abomination, aboriginal, aborigine, aborigines, abort, aborted, abortion, abortionist, abortively, abound, abound in, about, about-turn (US about-face), above, above all, above-board, above-mentioned, above-mentioned, above-named, aboveboard, abracadabra, abrade, abrasion, abrasive, abreast, abridge, abridged, abridgement (also abridgment), abroad,