buy过去式是哪个词 buy 过去式为啥是bought?
buy 过去式为啥是bought?buy的过去式是bought,是因为buy是不规则动词buy和bring的过去式变化规则?buy~bought~boughtb
buy的过去式和过去分词为什么一样 bought的四种形式?
bought的四种形式?bought的意思是买,获得,收买。bought是buy的过去式和过去分词1、bought英 [b??t];美 [b?t]v. 买,获得