It is essential for development of the heart, gut, and other organs (5, 6).

它对心脏、肠和其它器官的发育所必需(5,6)。

youdao

It is essential for development of the heart, gut, and other organs (5, 6).

它对心脏、肠和其它器官的发育所必需(5,6)。

youdao