embryo size

例句：

1. 1.The researchers found that the embryonic size of the baby was smaller than expected.
   研究人员发现，这个婴儿的胚胎大小比预期的小。
2. 2. The fetus is the embryonic stage of a human being.
   胎儿是人类胚胎发育的阶段。
3. 3. The size of the embryonic cells can affect their development later on.
   胚胎细胞的大小会影响它们后来的发展。