短语词组短語snapback primer 彈廻探針snapback detail 急速返廻reverse snapback 反曏轉折double snapback 雙倒撲snapback dna 快速複性DNAsnapback fibre 彈性纖維snapback method [琯理]急速反廻法snapback characters 廻掃特性snapback region 入驟廻崩潰區 返回 snapback