他和他的同事在在克隆动物园的露天水池里进行了他们的实验。

He and his colleagues carried out the experiment in an open-air pool in a zoo in Cologne.

youdao

他和他的同事在在克隆动物园的露天水池里进行了他们的实验。

He and his colleagues carried out the experiment in an open-air pool in a zoo in Cologne.

youdao