核心畫面
Think of a fence drawn around what you may do: inside the line is allowed, outside is not. A restriction is that line — sometimes the rule itself, written down and pointed at ('there's a restriction on parking here'), and sometimes the act of drawing the line tighter so that less gets through.
可以想成有人在你能做的事情外圍畫了一條線：線裡面可以，線外面不行。restriction 指的就是那條線——有時候指…更多收起
可以想成有人在你能做的事情外圍畫了一條線：線裡面可以，線外面不行。restriction 指的就是那條線——有時候指的是那條寫成白紙黑字、可以拿出來指的規定，有時候指的是把線往內收、讓通過的量變少這個動作本身。原始詞典資料3 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。
restrictionnoun/ɹɪˈstɹɪkʃən/
- 1
The act of restricting, or the state of being restricted.
- A surge of tight restriction emanates from the locale as tense muscles quiver like overtuned violin strings, and the feeling of shifting the kneecap back in place is very similar to cracking a knuckle (and in fact can produce an audible pop, adding a delightful aural component to the mix).
- 2
A regulation or limitation that restricts.
- In the year 1819, Sir Robert Peel brought in a bill, and which finally passed both houses, and received the royal assent on the 2nd July, for continuing the restrictions contained in several acts of parliament, on payments in cash by the bank of England, until the 1st day of May, 1823, and to provide for the gradual resumption of cash payments: [...] VIII. After the first day of May, 1822, the bank of England, if they shall think fit, may pay or exchange the lawful coin of the realm, for any of their own notes, payable on demand.
- In its lawsuit, the Times said the policy unlawfully restricts essential newsgathering techniques and gives the Pentagon “unfettered” discretion to revoke passes, permitting it to impose the type of “viewpoint-based” press restrictions forbidden by the constitution.
- 3
biologynatural-sciencesThe mechanism by which a cell degrades foreign DNA material.
- Echinorhagata is likewise supported by typical echinoderid autapomorphies, inclusive the number of trichoscalids that is reduced from 14 to 6; restriction of lateral accessory spines to females only; and an apparent restriction of the middorsal spines to appear only on segments 4 to 8.
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。