open sesame

open-sesame的词性：
n.（名词）

1. A means of attaining a goal that has been repeatedly successful.
法宝：被多次使用并且成功地达到目的一种方法

open-sesame的词源：

2. From the magical formula Open Sesame used by Ali Baba in the Arabian Nights to open the door of the robbers' cave
源自魔语 Open Sesame ，在 天方夜谭 中打开强盗穴洞门的阿里巴巴