Endomesoderm
[医] 内[胚层原]中胚层
🗣️ 情景例句
And in a short campaign
而且这一场短暂的竞选
A journey of a thousand miles begains with a single step.
千里之行，始于足下。
He dreaded having to spend Christmas in hospital.
他十分害怕在医院过圣诞。