Even so, from hundreds of eggs the effort yielded only a single ES cell line, and the researchers have said that they are not certain which of their methods was responsible for that success.是什么意思_Even so, from hundreds of eggs the effort yielded only a single ES cell line, and the researchers have said that they are not certain which of their methods was responsible for that success.在线翻译_英语_读音_用法_例句