on the down-low片语

私下地、秘密地、低调地口语

We kept the wedding plans on the down-low for a few months.

婚礼的计划我们私下保密了好几个月。

隐瞒同性关系的、不公开同性恋身分的俚语

He stayed on the down-low for years before telling his family.

他隐瞒自己的同性关系多年，才告诉家人。

秘密的、低调的口语

They had a down-low arrangement that no colleague ever noticed.

他们之间有个秘密的安排，同事从没察觉。