persevered的音标？

She persevered in her idea despite obvious objections raised by friends.虽然朋友们明确反对，她还是坚持己见。He persevered despite discouragement from those around him.尽管周围一片劝阻声，他还是锲而不舍。He was hopeless at French, but his teacher persevered...

v.坚忍，坚持( persevere的过去式和过去分词 )...