The
names of Chinese dishes are diverse, but behind each of the famous dishes is an
interesting story explaining why it is popular.
前半句话names是主语,are是系动词,diverse是表语,but并列了一个句子表转折,其中is是系动词,story是表语,请问主语是什么?以及explaining在句子中是什么成分,是宾补吗?why是explaining引导的宾语从句吗?