逗号后用动词ed形式,
.
这是在某个公司简介上看见的
the production base of engine fuel system and auto accessories,specialized in the lind of PW2000,PW series pump which are our core products,supplied to many diesel engine and gear pumps customer in China
注意看逗号后 specialized 和 supplied 为什么要用ed形式?
难道不应该用动名词(ing)么?