保持 + 低调 / 低调 + 的 + Noun
低调 (dīdiào) means "low-key," "understated," or "discreet," describing a style or behavior that avoids drawing attention. It can be used as both an adjective and an adverb. For example, 保持低调 means "to keep a low profile."
他一向很低调,从不炫耀自己的成绩。
tā yīxiàng hěn dīdiào, cóng bù xuànyào zìjǐ de chéngjì.
He has always been low-key and never shows off his achievements.
这次旅行我们低调一点,别发朋友圈了。
zhè cì lǚxíng wǒmen dīdiào yīdiǎn, bié fā péngyouquān le.
Let's keep a low profile on this trip; let's not post on social media.
她穿得很低调,但看得出来品味很好。
tā chuān de hěn dīdiào, dàn kàn de chūlái pǐnwèi hěn hǎo.
She dresses very low-key, but you can tell she has great taste.