straight-laced

美 [ˌstreɪt ˈleɪst]英 [ˌstreɪt ˈleɪst]

straight-laced

adj.

adj

exaggeratedly proper: my straitlaced Aunt Anna doesn't approve of my miniskirts; Synonym: priggish prim prissy prudish puritanical square-toed straitlaced strait-laced straightlaced tight-laced victorian

数据来源：WordNet

1

Mine is very prim and straight-laced .

我姑妈是很严肃的。
2

Running from Sept. 26 - Oct. 3 , the fourth edition of BJDW will be as massive and diverse as Beijing itself , featuring hundreds of events ranging from straight-laced industry forums at China Millennium Monument to experimental sound art on city buses .

第四届北京设计周从9月26日至10月3日举办，它将和北京这座城市一样宏大而多样化。设计周包括几百场活动，从中华世纪坛严谨的行业论坛到城市巴士上的实验声音艺术。
3

As Complex puts it , " Because one of your supposed friends tagged an incriminating picture of you on Facebook and now you have to explain to your precious princess girlfriend why her seemingly straight-laced knight in shining armor was acting out a scene from a Girls Gone Wild DVD .

就像Complex网站说的，你所谓的网友搜到你脸书上的私人照片，然后你就不得不去向你的宝贝女友解释为什么她穿着闪亮亮的盔甲看上去像是从GirlsGoneWild视频里走出来的一板一眼的骑士。