一本正经的英文怎么说

一本正经的英文：
[Literal Meaning]
one/book/official/classics
with a show of seriousness

[解释]
原指一部正规的经典，现在形容态度很庄重、很严肃。

[Explanation]
serious and solemn in attitude

[例子]
他平时总是一本正经的，连个玩笑都不开。

[Example]
He often remained serious and solemn in attitude and never made a joke.

[英文等价词]
to keep a straight face
prim
primness
sobriety
solemnity

• New England's history made for earnestness
  新英格兰的历史促成了一本正经的文风。
• He searched for a topic which would warm her office impersonality into friendliness
  他想找一个话题，使她一本正经的态度变得友好一点。
• Priscilla, you're being altogether too prim and proper
  普丽西拉，你真是一本正经，一板一眼了。
• The gangster was in deadly earnest about hi threat to burn down the club unless the protection was paid.
  这个歹徒一本正经地威胁说要烧毁这个俱乐部，除非向他交付保护费。
• He stammered confusedly and took himself away, for the moment abstracted, serious, lost in thought.
  他狼狈不堪，结结巴巴的说了几句，就告辞去了，一时心情恍惚，一本正经，想得出神。
• Why were grown-ups always so stuffy and slow to recognize good ideas?
  为什么成年人总是那么一本正经，对好点子反应那么迟缓呢？
• He stammered confusedly and took himself away, for the moment abstracted, serious, lost in thought
  他狼狈不堪，结结巴巴的说了几句，就告辞去了，一时心情恍惚，一本正经，想得出神。
• Serious;grave(mostly sarcastic)
  一本正经
• prim and proper
  一本正经的;循规蹈矩的
• They are with solemn looks but with oily words on their tongues.
  他们一本正经而又油腔滑调。