音標發(fā)音英式音標 [??l.?n ?ki?]美式音標 [??l.?n ?ki?]英式發(fā)音 美式發(fā)音 基本解釋艾倫內(nèi)六角扳手（一種L形金屬工具，用來擰六角螺絲）。同根派生 Allen key相關(guān)詞英英字典劍橋英英字典 a brand name for an L-shaped metal tool with six sides that is used to turn a screw that has a six-sided hole in the topAllen key劍橋字典Allen key柯林斯字典