perseverance是什么意思

　　例句：

　　The achievement of her goals relied mainly on her perseverance.

　　她主要是靠毅力實(shí)現(xiàn)了自己的`目標(biāo)。

　　Study requires perseverance.

　　學(xué)習(xí)要有鍥而不舍的精神。

　　Sometimes perseverance does win out.

　　有時(shí)候堅(jiān)持就是勝利。