but his optimistic attitude towards life and the common ground we share do matter.帮我分析下这个句子的语法common ground是什么意思do matter是什么语法谢谢.
问题描述:
but his optimistic attitude towards life and the common ground we share do matter.帮我分析下这个句子的语法common ground是什么意思do matter是什么语法谢谢.
答