persevererance
persevere的名词
persevere什么意思
persevered
persevere的形容词
persevere in
persevere固定搭配
persevere词根词缀
persevere with
perseverent
persevere是什么意思
perseverance
perseverence
persevere名词
persevere形容词
persevere的用法
persevere怎么读