If you do something shamelessly, you do it with no sign that you feel bad, even when other people think you should. It is the adverb that belongs to shameless: it tells how the thing was done.

If you do something shamelessly如果你shamelessly地做某件事，you do it with no sign that you feel bad你做的時候完全沒有表現出愧疚的樣子，even when other people think you should即使別人覺得你應該感到愧疚。It is the adverb that belongs to shameless它是shameless的副詞形式：it tells how the thing was done說明事情是「怎麼做」的。

News writers use it when someone lies, cheats, or takes credit in public and does not even pretend to be sorry.

News writers use it新聞寫作者會用這個詞，when someone lies, cheats, or takes credit in public當有人公開說謊、作弊，或搶功勞，and does not even pretend to be sorry甚至連裝一下抱歉都不肯。

Though actually, friends also use it with a laugh for small things — eating the last bun, asking for a favour too loudly. In that voice it does not mean the person is wicked; it means they did not hold back, and they did not look embarrassed.

Though actually不過事實上，friends also use it with a laugh for small things朋友之間也會笑著用它來說一些小事——eating the last bun, asking for a favour too loudly像是把最後一個麵包吃掉、或大聲拜託別人幫忙。In that voice it does not mean the person is wicked這種語氣裡並不是說這個人壞；it means they did not hold back而是說他們沒有收斂，and they did not look embarrassed也沒有露出不好意思的樣子。

Said seriously it is a hard, blaming word. Said lightly it is teasing. It is ordinary English, not only book English.

Said seriously it is a hard, blaming word認真地說出來，這是一個嚴厲、帶指責意味的詞；said lightly it is teasing輕鬆地說出來，就變成了調侃。It is ordinary English這是日常英文，not only book English不只是書面英文。