關牢、固定住
同一個「讓它不會鬆開」用在門窗和物件上：把門閂好、把東西綁在別的東西上。這裡強調的是牢固，不是關上而已。
fasten (shut firmly) · verb · B1
To shut a door, window, or gate firmly, or to become firmly shut.
關緊；閂上
核心畫面
Picture pressing two edges together until they hold: the coat is closed, the belt is done up, and it will not come apart on its own. Fasten is making something fast — held firmly in place — whether that is a button, a gate, a rope, a grip, or, in a few fixed phrases, your eyes and your attention.
可以想成：把兩個邊壓在一起直到它們固定住——外套扣起來了、腰帶繫好了，不會自己鬆開。fasten 就是「讓東西牢牢待…更多收起
可以想成：把兩個邊壓在一起直到它們固定住——外套扣起來了、腰帶繫好了，不會自己鬆開。fasten 就是「讓東西牢牢待住」：扣子、閘門、繩子、手的抓握都算；在幾個固定說法裡，被固定住的還可以是你的視線和注意力。From the picture
固定說法：把視線或注意力釘住
把「牢牢固定」用在看不見的東西上：眼睛盯著不放、心思全部集中過去。這兩個意思都要靠固定句型和 on 才成立，fasten 單獨不會表示凝視或專注。
fasten (fix your gaze on) · verb · B1
to look at someone or something for a long time (in fasten your eyes/gaze on).
凝視；盯著看
Also in this word
fasten (close/do up) · verb · B1
To close something by joining its two parts together, so it stays shut.
扣上；繫緊
fasten (do up, intransitive) · verb · B1
to become joined together with buttons, hooks, a zip, or something similar.
扣得上；合得攏
原始詞典資料2 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。
fastenverb/ˈfɑːsn̩/
- 1
To attach or connect in a secure manner.
- The sailor fastened the boat to the dock with a half-hitch.
- Fasten your seat belts!
- 2
To cause to take close effect; to make to tell; to land.
- to fasten a blow
- if I can fasten but one cup upon him
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。