知道，而且讓人看見
同一份「我知道」被送到臉上，給另一個人接收。話沒有說出口，表情代替了話。
r · C2
In a way that shows you know something that has not been said out loud — a secret, a shared joke, or something a little embarrassing.
會意地
核心畫面
One way to hold `knowingly` is to picture the knowledge already sitting inside the person before the action starts. Know + -ing + -ly: doing it with `I know` switched on. From there the word splits by where that knowing is aimed. Aim it outward, at another person's face, and it becomes a look that says I know. Keep it inward, as the facts you had in hand, and it becomes the word rules use to separate a choice from an accident.
knowingly 可以想成：動作發生之前，「知道」已經先坐在這個人心裡了。拆開來看是 know（知道）＋ -ing…更多收起
knowingly 可以想成：動作發生之前，「知道」已經先坐在這個人心裡了。拆開來看是 know（知道）＋ -ing ＋ -ly，也就是「帶著『我知道』去做一件事」。接下來的分岔，看這份「知道」朝哪裡去。朝外，給另一個人看，它就變成一個表情：那個笑、那個眼神在說「我知道喔」。朝內，留在自己手上，它就變成規則和法律最需要的那把尺：分開「故意」和「不小心」。同一個字，兩種去向，動詞會告訴你是哪一種。From the word’s history
Wiktionary records it from Middle English knawyngly, knowyngly, and analyses the modern form as knowing + -ly.
維基詞典記錄它來自中古英文的 knawyngly、knowyngly，並把現代形式分析成 knowing 加 -ly。這條線索有用的地方在於：整個字的重量從一開始就放在「知道」上，而不是放在「做」上。
Wiktionary entry `knowingly` (evidence packet source_ref kaikki:3f6f69a190036ae4:1227700179:9507)
From the picture
Also in this word
r · C2
On purpose and with full awareness — you know what you are doing and what it will cause, so it is not a mistake. It is common in rules, promises and legal wording, especially after `never`.
明知而故意地