mainline

v [Ipr, Tn, Tn.pr] ~ sth (into sth) (sl 俚) inject (a drug) into a large vein for stimulation, often because of addiction 将（毒品）注入大静脉（常因犯瘾）:be mainlining on hard drugs 注射硬性毒品 * She mainlinedheroin (into a vein in her arm). 她（向臂静脉中）注射海洛因.

maidservant, mail, mail order, mail-bag, mail-order, mailbox, mailed, mailer, mailing list, mailman, mailshot, maim, main, main clause, main deck, main drag, main line, mainbrace, mainframe, mainland, mainly, mainmast, mainsail, mainspring, mainstay, mainstream, maintain, maintain contact with, maintenance, maintenance order, maisonette (also maisonnette), maitre d'hotel, maize, Maj, majestic, majestically, majesty, major, major in, major premise,