mainlinedvt.,vi.mainline的变形：mainline['mein,lain]vt.,vi.[俚语]把(海洛因等毒品)直接注入静脉，向主要静脉内注射海洛因等麻醉药：Instead of injecting drugs into toes, they mainlined themselves under the tongue.他们不是在脚趾注射毒品，而是在自己的舌头底下注射。沉溺于(on):She is mainlining wine this week.这星期她狂饮葡萄酒。注入(兴奋剂或