the portal of knowledge的用法和樣例：
例句
- Questioning is the door of knowledge.
疑問(wèn)是通向知識之門(mén)。 - After the toastmaster's short introduction, the main spokeman Liu Yang opened the door of the hardware knowledge for us in simple words.
經(jīng)過(guò)主持人的簡(jiǎn)短介紹之后，主講人劉陽(yáng)用通俗易懂的語(yǔ)言為我們打開(kāi)了計算機硬件知識之門(mén)。
