If you do something purposely, you mean to do it. It is not an accident. You purposely sat in the front. You purposely didn't answer the phone.

If you do something purposely如果你故意做某件事, you mean to do it表示你是有意要做的。It is not an accident不是意外。You purposely sat in the front你故意坐在前面。You purposely didn't answer the phone你故意不接電話。

This is the ordinary word for on purpose, just a little more dressed-up. Parents, teachers, and news writing all use it. It does not have to sound nasty: you can purposely leave a light on so someone finds their way.

This is the ordinary word for on purpose這是「on purpose」（故意）最普通的說法, just a little more dressed-up只是稍微正式一點點。Parents, teachers, and news writing all use it父母、老師、新聞寫作都會用它。It does not have to sound nasty它不一定聽起來很壞心: you can purposely leave a light on你可以故意留一盞燈開著 so someone finds their way讓人可以找到路。

Though actually, this is the word students mix with purposefully their whole lives. Purposely = you chose to. Purposefully = you did it with a clear aim, in a sure, determined way.

Though actually不過其實, this is the word students mix with purposefully這是學生會跟 purposefully 搞混的詞 their whole lives一輩子都在搞混。Purposely = you chose toPurposely＝你選擇要做。Purposefully = you did it with a clear aimPurposefully＝你帶著明確目的去做, in a sure, determined way用一種篤定、堅決的方式。

You walk purposefully into a room when you look like you have a job to do. You purposely walk into a room when going in was the plan, not a mistake. You cannot really swap them.

You walk purposefully into a room你 purposefully 走進一個房間 when you look like you have a job to do是指你看起來像是有任務在身。You purposely walk into a room你 purposely 走進一個房間 when going in was the plan, not a mistake是指走進去本來就是計畫好的，不是走錯。You cannot really swap them這兩個詞其實不能互換。