- 1rB2/prɪˈzuːməbli/ · /prɪˈzjuːməbli/大概；想必
used when you think something is probably true because of what you already know, even though nobody has told you and you are not completely sure.
示範例句 · Example
All the lights are off, so presumably everyone has already gone home.
逐字所有的燈都關了，所以大概每個人都已經回家了。
「presumably」是用來標記「這是我從已知的事推想出來的」，不是隨口猜，也不是確定的事實。它常常接在一個線索後面：看到下雨，所以 presumably 比賽會取消。可以想成它跟動詞 presume（根據已知的事去推想）是同一條線長出來的，所以中文很接近「照這樣看，應該是…」「想必…」。它是「句子副詞」，管的是整句話，可以放句首（Presumably you know already）、句中（which presumably means…），也可以放句尾當一個確認（The shop's shut now, presumably?）。跟 maybe 比，presumably 有理由在後面；跟 certainly 比，它還留了「我沒真的確認過」的空間。
常見搭配
which presumably means (that)
這大概表示…
used to draw a likely conclusion from something you have just said
The gate is locked, which presumably means the park is shut.
presumably because
大概是因為
used to give the reason you think is true, without being sure
Leo was quiet all morning, presumably because he stayed up late.
presumably not
大概不是；想必沒有
used to say you think something is probably untrue
"Is the pool open in winter?" "Presumably not."
presumably you know / you've heard
想必你已經知道了吧
used to check politely that someone already knows something
Presumably you've heard that practice starts an hour earlier now.
core核心畫面
You can think of it as filling in a blank with the most reasonable guess. Nobody told you the answer, but what you already know points strongly one way — the lights are off, so presumably they have gone home. The word marks the sentence as your , not as reported fact.
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，摘錄並精簡格式，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。
presumablyadv/pɹɪˈzjuːməbli/
- 1
Able to be sensibly presumed.
- Presumably, he will attend the opening.
- Capello made a change on the hour which was presumably enforced by injury as the excellent Young was replaced by Stewart Downing.
摘錄自 英文維基詞典 English Wiktionary，已精簡格式；依 CC BY-SA 4.0 授權使用，改動後的內容同樣以此授權提供。