同种同宗是有可能的,东亚人本来就有很多相同的特征。但也说明不了中国人是日本人的祖先呀!
tóngzhǒngtóngzōng shì yǒu kěnéng de ,dōngyàrén běnlái jiù yǒu hěnduō xiāngtóng de tèzhēng 。dàn yě shuōmíngbùliǎo zhōngguórén shì rìběnrén de zǔxiān yā !
It's very possible that we have a lot in common. There are many distinctive points of similarity among East Asian peoples. But that doesn't mean that the Chinese are the ancestors of the Japanese!