open sesame From the fairy tale Ali Baba and the Forty Thieves , in which the magic words open sesame had to be said to open the cave where the thieves kept their treasure. 源自童话故事《阿里巴巴和四十大盗》。只有念出咒语“芝麻，开门”，大盗藏宝洞的大门才能打开。 something that makes it very easy to achieve a particular thing (达到…的)法宝，通行手段，开门咒语 A science degree can be an open sesame to a job in almost any field. 理科学位是可以在几乎所有领域获得一份工作的敲门砖。