abrasive

n. 研磨剂 a. 研磨的

aborigines, abort, aborted, abortion, abortionist, abortive, 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, abreast, abridge, abridged, abridgement (also abridgment), abroad, abrogate, abrogation, abrupt, abruptly, abruptness, abscess, abscission, abscond, abseil, absence, absent, absent-minded, absent-mindedly, absent-mindedness, absentee,