a. 速射的
在线英汉词典

rapid-fire的短语、例句：

rapid-fire adj [attrib 作定语] (a) (of a gun) firing bullets, etc in quick succession （指枪炮）速射的. (b) (fig 比喻) (of questions, etc) spoken very quickly, one after the other （指问题等）连珠炮似的
the rapid-fire jokes of a comedian 喜剧演员连续说出的笑话.