接過來當前提
把「接到自己身上」的對象換成一個想法：還沒證實就先把它接下來、當成真的，往後的思考都踩在這個前提上。
assume, suppose · verb · B2
To think that something is true without knowing for sure.
假定
核心畫面
Picture taking something up and onto yourself without waiting for it to be handed to you — an idea you take as given, a role you take on, a manner you put on. The one move underneath is 'take it up to yourself.'
可以想成把某個東西「接過來、擱到自己身上」，而且不等別人正式交給你：可能是一個說法（先當它是真的），可能是一個位子（…更多收起
可以想成把某個東西「接過來、擱到自己身上」，而且不等別人正式交給你：可能是一個說法（先當它是真的），可能是一個位子（扛起來），也可能是一個樣子（套在臉上）。底下那個共同的動作，就是「拿起來，往自己身上放」。From the word’s history
From Latin assumere 'to take up, take to oneself', from ad- 'to, up to' + sumere 'to take'. That literal 'take up to oneself' still runs under all the modern senses — taking an idea, a role, or an appearance up onto yourself.
源自拉丁文 assumere「拿起來、接到自己身上」，由 ad-（朝向、往上）加 sumere（拿、取）組成。這個字面上的「往自己身上拿」至今仍貫穿各個用法——不管接過來的是一個想法、一個職位，還是一個表情。
etymonline.com/word/assume (Latin assumere, ad-+sumere 'to take'; 'suppose without proof' from 1590s)
Two branches
扛在身上、套在身上
把「接到自己身上」的對象換成一個角色、一副表情或一種性質：不是接一個想法進腦子，而是把某樣東西披上身、由自己承擔或呈現出來。
assume, take on a role or duty · verb · B2
To start to take control, responsibility, or a new position or job.
承擔／就任
原始詞典資料5 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。
assumeverb/əˈsjuːm/
- 1
To authenticate by means of belief; to surmise; to suppose to be true, especially without proof.
- We assume that, as her parents were dentists, she knows quite a bit about dentistry.
- Levelling of ME /irC/ and /urC/, which Orton assumes for the whole of the North (S. Durham §§411-13), has not taken place in Dent and S.We, where ME /urC/ remains (4:46).
- 2
To take on a position, duty or form.
- Mr. Jones will assume the position of a lifeguard until a proper replacement is found.
- Trembling they stand while Jove assumes the throne.
- 3
To adopt a feigned quality or manner; to claim without right; to arrogate.
- He assumed an air of indifference.
- Assume a virtue, if you have it not.
- 4
To receive, adopt (a person).
- The sixth was a young knight of lesser renown and lower rank, assumed into that honorable company.
- 5
To adopt (an idea or cause).
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。