核心畫面
Picture the bottom layer of a building — the part nobody looks at, holding everything above it. This word points at that layer. From there it says two closely linked things: that something belongs to the deepest level, and that if you take it away the whole thing stops standing.
可以想成：一棟建築最底下的那一層——平常沒人在看，卻撐著上面所有東西。這個字指的就是那一層。從這個畫面出發，它會說兩…更多收起
可以想成：一棟建築最底下的那一層——平常沒人在看，卻撐著上面所有東西。這個字指的就是那一層。從這個畫面出發，它會說兩件很靠近的事：一是「這屬於最底層」，二是「拿掉它，上面整個就垮了」。原始詞典資料6 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
fundamentalnoun/ˌfʌn.dəˈmɛn.təl/
- 1
A basic truth, elementary concept, principle, rule, or law. An individual fundamental will often serve as a building block used to form a complex idea.
- Personal leadership is a fundamental of successful government.
- 2
A collection of essential component ideas that are often grouped together to serve as the foundational basis of a complex idea.
- one of the fundamentals of linear algebra
- When any one offers me a compleat Catalogue of his Fundamentals, he does not unreaſonably demand me to quit mine for nothing[…]
- 3
natural-sciencesphysical-sciencesphysicsThe lowest frequency of a periodic waveform.
- 4
entertainmentlifestylemusicThe lowest partial of a complex tone.
fundamentaladj/ˌfʌn.dəˈmɛn.təl/
- 1
Related to a foundation, base, or basis; serving as a foundation.
- 2
Essential; extremely important.
- a fundamental truth; a fundamental axiom; a fundamental element; fundamental principle; fundamental law
- A need for belonging seems fundamental to humans.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。