慢慢 + 地 + Verb
慢慢 (mànmàn) is an adverb meaning 'slowly' or 'gradually.' It is a reduplication of 慢 (slow) and conveys a gentle, unhurried pace. It is often followed by 地 before a verb, as in 慢慢地走 (to walk slowly).
他慢慢地喝了一口茶。
Tā mànmàn de hē le yī kǒu chá.
He slowly took a sip of tea.
别着急,慢慢来就好。
Bié zhāojí, mànmàn lái jiù hǎo.
Don't worry, take your time.
天慢慢黑了,我们该回去了。
Tiān mànmàn hēi le, wǒmen gāi huíqù le.
It's slowly getting dark, we should head back.