1.  open sesame
2.  stepping-stone to success

• 1. 敲门砖: First Things First | stepping stone | English as a Door Opener
• 2. 学习英语的敲门砖: First Things First | Fi t Things Fi
• 3. 块敲门砖: a stepping-stone to success

更多释义

• 1.在校成绩好并非总是获得高薪职位的敲门砖。
  Academic success is not always an open sesame to a well-paid job.
  dict.yoduao.com
• 2.据他回忆，他学会了逃避石头和拳头，以保护自己的脸，甚至在当时，他就意识到这是他更大的成就的敲门砖。
  As he recalled, he learned to dodge the stones and fists to protect his face, which he realized even then would be his ticket to greater things.
  dict.yoduao.com
• 3.也是任何商业程序的敲门砖。
  It is also a key to any business program.
  dict.yoduao.com

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