Everybody knows, the main source of vitamin B1 is grain crop, and in the skin of seed of crop of grain of main consist in and plumule part.是什么意思_Everybody knows, the main source of vitamin B1 is grain crop, and in the skin of seed of crop of grain of main consist in and plumule part.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句