11年来，我一直是大众电视系列片‘美国科学前沿’的主持人。

For 11 years, I was the host of the public television series Scientific American Frontiers.

youdao

11年来，我一直是大众电视系列片‘美国科学前沿’的主持人。

For 11 years, I was the host of the public television series Scientific American Frontiers.

youdao