应该是有错的.正确句子应该是：When I draw a picture,it is not onlya good way to relax myself but also teaching me something important in my daily life.翻译：它不仅是一个很好的自我放松方式,也能够教会我一些日常生活中重要的东西.因为 not only Abut also B应当是并列的,同时接在it is 之后.