请大家分析这句, that 在这起什么作用?是从句吗?knowing 、when起什么作用?整句的主句、从句是哪个?
请大家分析这句, that 在这起什么作用?是从句吗?knowing 、when起什么作用?整句的主句、从句是哪个?
knowing that the industrious ant lives in a highly organized society does nothing to prevent us from being filled with revulsion when we find hordes of them crawling over a carefully prepared picnic lunch