Surprisingly, no one knows how many children receive education in English hospitals, still less the content or quality of that education.
刘老师:
说明:词典一般都把still less看做一个固定的副词短语,但我认为,从实际用法来看,它确实是一个连词,在句子中连接了两个并列的成分。此外,还有much less, even less也属此类,意思和用法相同。
We use the expressions “still less”, “much less”, and “even less” after a negative statement in order to introduce and emphasize a further statement, and to make it negative too.