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1·Rosser, however, chalked that up to the ethical issues it raises.

然而罗斯认为这会带来道德问题。

2·What you have to consider is the ethics of this, said Dr. Mary Rosser, an obstetrician and gynecologist at the Montefiore Medical Center in New York.

“你得考虑道德影响”，纽约医疗中心妇产科的玛丽·罗斯博士说。