核心畫面
You can picture possibly as a word that opens a door just a crack: it says 'this might be true / might happen' without promising it. It marks the space of what is possible — not certain, but not ruled out. Once you hold that 'the door is , it could go either way' image, the surprised, polite, and emphatic uses all turn out to be that same door pushed in different directions.
可以把 possibly 想成一個把門推開一道縫的字：它說「這件事有可能是真的、有可能會發生」，但不保證。它標出了「…更多收起
可以把 possibly 想成一個把門推開一道縫的字：它說「這件事有可能是真的、有可能會發生」，但不保證。它標出了「可能的空間」——不是確定，但也沒被排除。握住這個「門半開著、事情還可能往兩邊走」的畫面，后面那些驚訝、禮貌、加重的用法，其實都是同一扇門被往不同方向推。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。
possiblyadv/ˈpɒs.ə.bli/
- 1
Perhaps; indicates that the proposition may be true (is not certainly false) regardless of any facts or circumstances known to, stated by or implied by the speaker.
- Near-synonyms: maybe, perhaps, mayhap, mayhaps, by chance, perchance, peradventure; conceivably
- Possibly, they will make gains in the midterm elections.
- 2
In the realm of possibility; indicates that the action may successfully be performed (is not impossible) regardless of any facts or circumstances known to, stated by or implied by the speaker that might limit the performance.
- I'm much stronger than you, so you can't possibly win.
- I couldn't possibly be there on time.
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。