border on

接界；接近，非常像

boost, booster, boot, bootee, booth, bootlace, bootleg, bootlegger, bootless, bootstrap, booty, booze, booze-up, boozer, boozy, boracic, borage, borax, Bordeaux, border, borderer, borderland, borderline, bore, boredom, boric, boring, born, born of, born-again, borne, boron, borough, borrow, borrower, borrowing, borrowings, Borstal, bortsch (also borsch), borzoi,