the portal of knowledge

• 知识之门

the portal of knowledge的用法和样例：

例句

1. Questioning is the door of knowledge.
   疑问是通向知识之门。
2. After the toastmaster's short introduction, the main spokeman Liu Yang opened the door of the hardware knowledge for us in simple words.
   经过主持人的简短介绍之后，主讲人刘阳用通俗易懂的语言为我们打开了计算机硬件知识之门。