后来，人们慢慢掌握了“年”的特点和活动规律，发现它害怕响声和红颜色的东西，且出没时间都是在天黑以后。

It was discovered that Nian had a fear of loud noises and the color red.

youdao

我慢慢开始掌握这种语言。

I'm slowly getting to grips with the language.

《牛津词典》

他或许是我这辈子见过的最搞笑的人了，所以他也开始慢慢地尝试，当然现在也能完全掌握了，而且我觉得他真的会在twitter上十分风靡的。

He's probably one of the funniest people I've ever met in my life so he's slowly but surely catching on to it all, and I think he's really going to become very, very popular on Twitter.

youdao