settle into

(使)习惯于...(使)适应...
settle yourself into the new class 使你自己融入到新的班级里.
The animals quickly settle into the zoo.动物们很快适应了动物园的生活.
the rain finally settled into a quieter drizzle.
雨最终小下来,变成安静些的毛毛雨.
这里settle的意思是安静下来,平静下来.