Their wedding was very hush-hush.

他们的婚礼非常秘密。

《牛津词典》

Apparently there's a very hush-hush project under way up north.

貌似这里往北的地方有个非常机密的项目正在进行。

《柯林斯英汉双解大词典》

Earlier when their relationship was still a hush-hush affair, there were leaked reports that the couple planned to throw at least three weddings in different cities.

早在两人关系还处于保密状态之前，就有报道透露两人计划在不同的城市举办至少三场婚礼。

youdao

The information is all hush hush.

VOA: special.2010.10.24

Yes. When we get sleepy we'll sleep. Now hush."

是的，困了我们就睡，“,“不要说话了，“

耶鲁公开课 - 1945年后的美国小说课程节选

When you walk in, a hush falls over your soul and your body starts to tingle,

当你走进去的时候，你的灵魂会突然安静下来，而你的身体则开始激动不已，

布朗克斯的景点 - SpeakingMax英语口语达人

Initially these parties were hush-hush affairs and heavy security was hired to scare off automotive spies.

FORBES: Playing Hard to Get

If you really want to get away, the vacation-within-a-vacation is Moloka'i, profiled by Robert Reid in "Hawaii's hush-hush getaway".

BBC: This is Hawaii week

At 2.30am they drove to a sleepy parliament to sign their hush-hush accord.

ECONOMIST: Israeli politics