加在東西上的裝飾
這一支就是核心畫面本身，也是字源 bel（美）最直接的樣子。
verb · C1
To make something look more beautiful by adding decoration to it, such as gold thread sewn onto a dress or carved patterns cut into a door.
裝飾；加上點綴
核心畫面
Something is already finished and already works. Then someone adds an extra layer on top of it, for no reason except that it looks better that way: gold thread on a plain dress, an extra note in a tune, an extra detail in a story. Take the layer off and the thing underneath is unchanged — which is why it is a pleasure on a dress, and a problem on the truth.
可以想成一樣東西已經做好了，也已經能用。然後有人在上面再加一層，理由只有一個：這樣比較好看。素洋裝上的金線、曲子裡多…更多收起
可以想成一樣東西已經做好了，也已經能用。然後有人在上面再加一層，理由只有一個：這樣比較好看。素洋裝上的金線、曲子裡多出來的幾個音、故事裡多出來的一個細節，都是這一層。把它拿掉，底下那樣東西沒有變——所以加在洋裝上是享受，加在事實上就變成問題。From the word’s history
The packet's Wiktionary etymology gives Middle English embelishen, from Old French embellir, from em- + bel 'beautiful'. The word literally means to make beautiful, and the sense about stories is the same act turned on what someone says.
來源記錄字源是中古英文 embelishen，來自古法文 embellir，由 em-（使…變成）加 bel（美）組成。字面上就是「弄漂亮」。用在故事上的那個意思，是同一個動作轉向了人說出口的話。
Wiktionary etymology supplied in packet (kaikki:3f6f69a190036ae4:39710779)
Two branches
加在話上的細節
同一個「加一層讓它好看」的動作，對象換成一段話。這是意思上的延伸，不是另一條字源。
verb · C1
To add details to a story or a statement that are not true, so that it sounds better or more interesting than what really happened.
添油加醋；誇大