有个词组avoid doing 那么avoid maintaining 有这说法吗

avoid doing sth 和avoid sth有什么区别? avoid doing和avoid to do avoid sth,avoid to do sth ,avoid doing sth avoid 后面是加原形还是doing?怎么有书上是do有些书上是doing? avoid 到底是doing sth 还是to do sth 还是两个都有 用avoid doing sth 造句 短点! avoid doing sth是什么u意思? Avoid后是接 doing还是to do 用avoid组成的固定词组么? avoid doing sth,enjoy doing sth,还有别的类似的语法吗? avoid to do 和avoid doing 存在avoid to do 为什么我以前在报纸上看到过 avoid doing和 avoid to do的区别.英语好的进来下