strait-laced

音标发音

Singapore seems to have gone from strait-laced container port to gambling mecca in one bound.
新加坡似乎已从一个传统的集装箱港口城市一跃成为了赌徒们的圣地。
Other Latin American countries—namely Argentina, Ecuador and Venezuela—have been less strait-laced.
其他拉美国家，如阿根廷，厄瓜多尔，或委内瑞拉等，（经济政策）就没有那么严谨。
According to this view, the past decadent decade will give way to a new era of thrift, reminiscent of the strait-laced 1950s.
根据这一观点，奢华的过去十年可能让位于节俭新时代，让人想起上世纪50年代“勒紧裤腰带”的时代。

To view Wharton's fiction as strait-laced, however, is to miss the elephant in the room.
ECONOMIST: Literary biography
The strait-laced Hobbit is tapped by the wizard Gandalf (Sir Ian McKellen) for an adventure.
FORBES: Review: The Hobbit: An Unexpected, But Very Welcome, Journey
State-controlled television gave reasonably even-handed campaign coverage and screened slick, Hollywoodised propaganda slots produced by some of the candidates (though not the strait-laced Mr Ahmadi-Nejad).
ECONOMIST: Iran's choice: pragmatist or hardliner?

having old-fashioned and unchanging morals, especially relating to sexual matters

If you describe someone as strait-laced, you disapprove of them because they have very strict views about what kind of behaviour is moral or acceptable.