1. That's when a scientist in Denmark separated cells from a sheep's embryo (胚胎).
    但1984年，一位丹麦科学家从一只绵羊的胚胎中分离出了细胞。

2. The Danish scientist combined an embryo cell with an egg cell from another sheep.
    这位丹麦科学家将一个胚胎细胞和一个取自另一只绵羊的卵细胞结合起来。

3. To much surprise, the embryo grew into a baby lamb.
    极为奇特的是，这只胚胎长成了一个小羊羔。

4. He put the combined cell — then a newly growing embryo — into a grown female sheep.
    他把结合后的细胞——此时已是一个重新生长的细胞——植入一只成熟母羊的体内。

5. An embryo is an early stage of development in which cells are busy dividing and "transforming" into specialized cells like skin, eye, or muscle cells.
    胚胎是发育的最初阶段，在这个阶段，细胞不停地分裂并"转化"成特化的细胞，如皮肤细胞、眼睛细胞、或肌肉细胞等。

6. Unlike a skin cell, an embryo is on its way to becoming a complete living thing:
    与单个皮肤细胞不同，一个胚胎将逐渐形成一个完整的生命体：

7. Instead of using early-stage embryo cells, Wilmut used cells from the udder (乳腺) of an adult sheep.
    威尔莫特使用的不是初期胚胎细胞，而是从一只成年绵羊的乳腺提取的细胞。