Zài / pēi / tāi / fā / yù / guò / chéng / zhōng / luǎn / huáng / guǎn / huì / zhú / jiàn / tuì / huà

在胚胎发育过程中，卵黄管会逐渐退化。

During embryonic development, the vitelline duct gradually degenerates.