THAT IS 的用法(例:Philip is a New Yorker,that is,he lives in New York.)
问题描述：
THAT IS 的用法(例:Philip is a New Yorker,that is,he lives in New York.)
当两句句子有何关系时用that is?
答
that is,用在对前一句的解释,意为,which means...
如果对前一个句子中的某个词没有解释,当然不能为用而用