that is
US /ðæt ɪz/
UK /ðæt ɪz/
短语
也就是说, 即
used to introduce a clarification or explanation
示例:
•
He is a polyglot, that is, he speaks many languages.
他是一个多语种者，也就是说，他会说多种语言。
•
The meeting will be held next Tuesday, that is, on the 15th of May.
会议将于下周二举行，也就是5月15日。