about

ad.周围；大约；prep.关于；到处；忙于

abolish, abolition, abolitionism, abolitionist, abominable, Abominable Snowman, abominably, abominate, abomination, aboriginal, aborigine, aborigines, abort, aborted, abortion, abortionist, abortive, abortively, abound, abound in, 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, abrogate, abrogation, abrupt, abruptly,