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If you do something dutifully, you do it because you believe that is the correct way to behave — the adverb twin of . Children dutifully line up; a guest dutifully admires the photos. As with the adjective, it can be kind, or it can be a little dry: the action is proper, but it may not be eager. It tells you about manner, not about skill. You can dutifully attend a class you do not love. It belongs to the same slightly careful, grown-up register as ; you will hear it in stories and in gentle teasing more than in very casual chat.
盡本分地、乖乖地（照規矩做，不一定很情願）
原始詞典資料1 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。
dutifullyadv
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With a regard to duty; in a dutiful manner.
- Ives, who is better known for sliminess than courage, approached Samson who was dutifully attending his feudal lord Grouty as usual[…]
- But most Israeli mechanics say "breaks," with the "r" sound dutifully transformed from the American dog-barking noise to an upscale Frenchlike trill.
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。