是help oneself to doing还是help oneself to do?

help oneself to do sth. help oneself to address oneself to +do 还是+doing>? “help oneself to something”是什么意思? help:to be oneself是什么意思 devote oneself to后面接什么是to do还是doing help oneself to sth什么事思? help （oneself）to some fish Help ___(oneself) to some apples,children. help oneself to sth 改成什么 Help( )(oneself)to som fish,Lily. can't help doing和help oneself to 麻烦造几个句子（越多越好）谢了