不公平地偏袒一方
偏心球用在「本來該公正」的場合，於是那個傾斜就成了問題。
unfairly prejudiced · adjective · C1
Unfairly preferring one person or group over another, or being unfairly against them.
有偏見的
核心畫面
Think of a weight hidden inside a ball: it looks like it should roll straight, but it always leans and curves to one side. Biased means something is tilted one way before it even starts.
一顆裡面藏了配重的球：外表看起來很正常，但你一放手，它就自己往同一邊偏過去，怎麼滾都回不到直線。biased 講的就…更多收起
一顆裡面藏了配重的球：外表看起來很正常，但你一放手，它就自己往同一邊偏過去，怎麼滾都回不到直線。biased 講的就是這種「還沒開始就已經往某一邊倒」的狀態——不是臨時決定要偏，而是那個傾斜本來就內建在裡面。這顆偏心球既可以拿來說一個人的判斷，也可以拿來說一份東西的比重。From the word’s history
From bias + -ed. Bias came from the game of bowls, where a ball was made heavier on one side so that it curved instead of running straight.
biased 就是 bias 加上 -ed。bias 這個字來自草地滾球（bowls）：球會刻意做成一邊重，於是滾出去的路線必然是彎的，這種內建的偏斜就叫 bias。所以現代講人「有偏見」，用的其實還是那顆偏心球的畫面——不是路不平，是球本身就不正。
Wiktionary / Online Etymology Dictionary, 'bias' (from the game of bowls: a ball weighted on one side so it runs obliquely)
Two branches
比重偏向某一邊
同一顆偏心球，但用在沒有「公平不公平」問題的場合，就只是描述傾向。
leaning toward something · adjective · C1
More interested in a particular thing than in another; tending to go that way.
偏向
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。
biasedadj/ˈbaɪəst/
- 1
Exhibiting bias; prejudiced.
- The newspaper gave a biased account of the incident.
- Obviously I'm biased, but…
- 2
Having outcomes with unequal probabilities; weighted.
- a biased coin
- 3
Angled at a slant.
- The table had a biased edge.
- 4
businesselectricalelectrical-engineeringOn which an electrical bias is applied.
- 5
mathematicssciencesstatisticsExhibiting a systematic distortion of results due to a factor not allowed for in its derivation; skewed.
這個拼法也被記錄為下列字的變化形：
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。