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》
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