人们曾提出各种不同的系统来生产以蛋白质为主的非传统食物。

A variety of systems have been suggested for the production of unconventional foods, primarily protein.

youdao

人们曾提出各种不同的系统来生产以蛋白质为主的非传统食物。

A variety of systems have been suggested for the production of unconventional foods, primarily protein.

youdao