There seem to have been from the beginning , or at least very early , two forms of singing , the responsorial and the antiphonal .

有似乎已经从一开始，或至少是很早就，两种形式的歌唱。

youdao

There seem to have been from the beginning , or at least very early , two forms of singing , the responsorial and the antiphonal .

有似乎已经从一开始，或至少是很早就，两种形式的歌唱。

youdao