1·The sex of the embryo is predetermined at fertilization.
胚胎的性别早在受精时就决定了。
—— 《牛津词典》
2·Which embryo cells are determined?
哪些胚胎细胞是确定的？
3·It matters in which plane the embryo is cut.
这关系到胚胎在哪个平面被切割。
4·A salamander embryo can attract algae inside its tissues and cells.
蝾螈胚胎却会吸引藻类进入组织和细胞。
5·Who took a ball, the vesicle, and he transplanted from the embryo, the ear region, to a limb.
他从胚胎的耳朵部分中，取出一个泡囊移植到腕部。
1·Enzymic protein content decreases from the maximum at early phase of proembryo stage (20.83%) to the minimum at young embryo (4.9%).
酶蛋白的最大含量在原胚阶段初为20.83%，以后至幼胚阶段急剧减少到4.9%。
2·Then embryogenic cell divided into two cells, which sequentially differentiated through multicell proembryo, globular, heart-shaped and cotyledonary embryo stages.
胚性细胞分裂产生两个细胞，进而分化发育成多细胞原胚、球形胚、心形胚及子叶胚。
3·Mesoderm --- The middle germ layer in the early embryo; the source of cells that go on to make bones, muscles, connective tissue, heart, hematopoietic system, kidney, and other organs.
原肠胚形成过程中，由上胚层细胞增殖产生的一部分细胞在上、下胚层之间形成的第三层细胞。通常形成骨骼、肌肉、结缔组织、心脏、造血系统、肾脏和其它器官。
4·Intriguingly, before the heart of a developing mammalian embryo separates into four Chambers, it looks similar to the two-chambered zebrafish heart.
非常有趣的是，发育中的哺乳动物晶胚的心脏在分化为四腔室前，与斑马鱼的双腔心脏非常相似。
5·On the basis of the white embryo, we can paint the heart of their own "SUNDAY", and can be extended according to demand to produce more products.
在白胚的基础上，我们可以随心涂画出属于自己的“SUNDAY”，并可根据需求制作更多延伸性产品。